- internal_constraint_toleranceThe Newton-Raphson process is only deemed converged if the internal constraint is less than this.
C++ Type:double
Controllable:No
Description:The Newton-Raphson process is only deemed converged if the internal constraint is less than this.
- mc_cohesionA TensorMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb cohesion. Physically this should not be negative.
C++ Type:UserObjectName
Controllable:No
Description:A TensorMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb cohesion. Physically this should not be negative.
- mc_dilation_angleA TensorMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb dilation angle (in radians). Usually the dilation angle is not greater than the friction angle, and it is between 0 and Pi/2.
C++ Type:UserObjectName
Controllable:No
Description:A TensorMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb dilation angle (in radians). Usually the dilation angle is not greater than the friction angle, and it is between 0 and Pi/2.
- mc_friction_angleA TensorMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb friction angle (in radians). Physically this should be between 0 and Pi/2.
C++ Type:UserObjectName
Controllable:No
Description:A TensorMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb friction angle (in radians). Physically this should be between 0 and Pi/2.
- yield_function_toleranceIf the yield function is less than this amount, the (stress, internal parameter) are deemed admissible.
C++ Type:double
Controllable:No
Description:If the yield function is less than this amount, the (stress, internal parameter) are deemed admissible.
TensorMechanicsPlasticDruckerPragerHyperbolic
buildconstruction:Undocumented Class
The TensorMechanicsPlasticDruckerPragerHyperbolic has not been documented. The content listed below should be used as a starting point for documenting the class, which includes the typical automatic documentation associated with a MooseObject; however, what is contained is ultimately determined by what is necessary to make the documentation clear for users.
Non-associative Drucker Prager plasticity with hyperbolic smoothing of the cone tip.
Overview
Example Input File Syntax
Input Parameters
- execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS
Controllable:No
Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM, ALWAYS.
- max_iterations40Maximum iterations to use in the custom return map function
Default:40
C++ Type:unsigned int
Controllable:No
Description:Maximum iterations to use in the custom return map function
- mc_interpolation_schemelode_zeroScheme by which the Drucker-Prager cohesion, friction angle and dilation angle are set from the Mohr-Coulomb parameters mc_cohesion, mc_friction_angle and mc_dilation_angle. Consider the DP and MC yield surfaces on the deviatoric (octahedral) plane. Outer_tip: the DP circle touches the outer tips of the MC hex. Inner_tip: the DP circle touches the inner tips of the MC hex. Lode_zero: the DP circle intersects the MC hex at lode angle=0. Inner_edge: the DP circle is the largest circle that wholly fits inside the MC hex. Native: The DP cohesion, friction angle and dilation angle are set equal to the mc_ parameters entered.
Default:lode_zero
C++ Type:MooseEnum
Options:outer_tip, inner_tip, lode_zero, inner_edge, native
Controllable:No
Description:Scheme by which the Drucker-Prager cohesion, friction angle and dilation angle are set from the Mohr-Coulomb parameters mc_cohesion, mc_friction_angle and mc_dilation_angle. Consider the DP and MC yield surfaces on the deviatoric (octahedral) plane. Outer_tip: the DP circle touches the outer tips of the MC hex. Inner_tip: the DP circle touches the inner tips of the MC hex. Lode_zero: the DP circle intersects the MC hex at lode angle=0. Inner_edge: the DP circle is the largest circle that wholly fits inside the MC hex. Native: The DP cohesion, friction angle and dilation angle are set equal to the mc_ parameters entered.
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- smoother0The cone vertex at J2=0 is smoothed. The maximum mean stress possible, which is Cohesion*Cot(friction_angle) for smoother=0, becomes (Cohesion - smoother/3)*Cot(friction_angle). This is a non-hardening parameter
Default:0
C++ Type:double
Controllable:No
Description:The cone vertex at J2=0 is smoothed. The maximum mean stress possible, which is Cohesion*Cot(friction_angle) for smoother=0, becomes (Cohesion - smoother/3)*Cot(friction_angle). This is a non-hardening parameter
- use_custom_ctoTrueWhether to use the custom consistent tangent operator computations. Set to true if you are using isotropic elasticity.
Default:True
C++ Type:bool
Controllable:No
Description:Whether to use the custom consistent tangent operator computations. Set to true if you are using isotropic elasticity.
- use_custom_returnMapTrueWhether to use the custom returnMap algorithm. Set to true if you are using isotropic elasticity.
Default:True
C++ Type:bool
Controllable:No
Description:Whether to use the custom returnMap algorithm. Set to true if you are using isotropic elasticity.
Optional Parameters
- allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
Default:False
C++ Type:bool
Controllable:No
Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- force_postauxFalseForces the UserObject to be executed in POSTAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in POSTAUX
- force_preauxFalseForces the UserObject to be executed in PREAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREAUX
- force_preicFalseForces the UserObject to be executed in PREIC during initial setup
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREIC during initial setup
- use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Advanced Parameters
Input Files
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_outer_tip.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto24.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto20.i)
- (modules/tensor_mechanics/test/tests/jacobian/cdp_cwp_coss01.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_inner_tip.i)
- (modules/tensor_mechanics/test/tests/jacobian/cdpc01.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_inner_edge.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto29.i)
- (modules/tensor_mechanics/test/tests/jacobian/cdp_cwp_coss02.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_lode_zero.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto28.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_outer_tip.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto26.i)
- (modules/tensor_mechanics/test/tests/jacobian/cdpc02.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/random_hyperbolic.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_inner_tip.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_native.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto25.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_native.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_inner_edge.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto19.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto21.i)
- (modules/tensor_mechanics/test/tests/jacobian/cto27.i)
- (modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_lode_zero.i)
- (modules/porous_flow/test/tests/dirackernels/injection_with_plasticity.i)
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_outer_tip.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = outer_tip
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_outer_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cto24.i)
# CappedDruckerPrager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
block = 0
lambda = 0.7
shear_modulus = 1.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 0 0 0 10 0 0 0 10'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = dp
[../]
[./dp]
type = CappedDruckerPragerStressUpdate
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/jacobian/cto20.i)
# DruckerPragerHyperbolic
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
smoother = 1
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = dp
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/jacobian/cdp_cwp_coss01.i)
#Cosserat capped weak plane and capped drucker prager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
Cosserat_rotations = 'wc_x wc_y wc_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[./wc_x]
[../]
[./wc_y]
[../]
[]
[Kernels]
[./cx_elastic]
type = CosseratStressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = CosseratStressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = CosseratStressDivergenceTensors
variable = disp_z
component = 2
[../]
[./x_couple]
type = StressDivergenceTensors
variable = wc_x
displacements = 'wc_x wc_y wc_z'
component = 0
base_name = couple
[../]
[./y_couple]
type = StressDivergenceTensors
variable = wc_y
displacements = 'wc_x wc_y wc_z'
component = 1
base_name = couple
[../]
[./x_moment]
type = MomentBalancing
variable = wc_x
component = 0
[../]
[./y_moment]
type = MomentBalancing
variable = wc_y
component = 1
[../]
[]
[AuxVariables]
[./wc_z]
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[./coh]
type = TensorMechanicsHardeningConstant
value = 2
[../]
[./tanphi]
type = TensorMechanicsHardeningConstant
value = 0.5
[../]
[./tanpsi]
type = TensorMechanicsHardeningConstant
value = 2.055555555556E-01
[../]
[./t_strength]
type = TensorMechanicsHardeningConstant
value = 1
[../]
[./c_strength]
type = TensorMechanicsHardeningConstant
value = 100
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeLayeredCosseratElasticityTensor
young = 10.0
poisson = 0.25
layer_thickness = 10.0
joint_normal_stiffness = 2.5
joint_shear_stiffness = 2.0
[../]
[./strain]
type = ComputeCosseratIncrementalSmallStrain
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 0 0 0 10 0 0 0 10'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticCosseratStress
inelastic_models = 'dp wp'
relative_tolerance = 2.0
absolute_tolerance = 1E6
max_iterations = 1
[../]
[./dp]
type = CappedDruckerPragerCosseratStressUpdate
host_youngs_modulus = 10.0
host_poissons_ratio = 0.25
base_name = dp
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[./wp]
type = CappedWeakPlaneCosseratStressUpdate
base_name = wp
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tensile_strength = t_strength
compressive_strength = c_strength
tip_smoother = 0.1
smoothing_tol = 0.1
yield_function_tol = 1E-11
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
#petsc_options = '-snes_test_display'
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
end_time = 1
dt = 1
type = Transient
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_inner_tip.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = inner_tip
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_inner_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cdpc01.i)
#Cosserat capped weak plane and capped drucker prager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
Cosserat_rotations = 'wc_x wc_y wc_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[./wc_x]
[../]
[./wc_y]
[../]
[]
[Kernels]
[./cx_elastic]
type = CosseratStressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = CosseratStressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = CosseratStressDivergenceTensors
variable = disp_z
component = 2
[../]
[./x_couple]
type = StressDivergenceTensors
variable = wc_x
displacements = 'wc_x wc_y wc_z'
component = 0
base_name = couple
[../]
[./y_couple]
type = StressDivergenceTensors
variable = wc_y
displacements = 'wc_x wc_y wc_z'
component = 1
base_name = couple
[../]
[./x_moment]
type = MomentBalancing
variable = wc_x
component = 0
[../]
[./y_moment]
type = MomentBalancing
variable = wc_y
component = 1
[../]
[]
[AuxVariables]
[./wc_z]
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeLayeredCosseratElasticityTensor
young = 10.0
poisson = 0.25
layer_thickness = 10.0
joint_normal_stiffness = 2.5
joint_shear_stiffness = 2.0
[../]
[./strain]
type = ComputeCosseratIncrementalSmallStrain
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 0 0 0 10 0 0 0 10'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticCosseratStress
inelastic_models = 'dp'
relative_tolerance = 2.0
absolute_tolerance = 1E6
max_iterations = 1
[../]
[./dp]
type = CappedDruckerPragerCosseratStressUpdate
host_youngs_modulus = 10.0
host_poissons_ratio = 0.25
base_name = dp
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
end_time = 1
dt = 1
type = Transient
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_inner_edge.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = inner_edge
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_inner_edge
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cto29.i)
# CappedDruckerPragerCosserat
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
Cosserat_rotations = 'wc_x wc_y wc_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[./wc_x]
[../]
[./wc_y]
[../]
[]
[Kernels]
[./cx_elastic]
type = CosseratStressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = CosseratStressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = CosseratStressDivergenceTensors
variable = disp_z
component = 2
[../]
[./x_couple]
type = StressDivergenceTensors
variable = wc_x
displacements = 'wc_x wc_y wc_z'
component = 0
base_name = couple
[../]
[./y_couple]
type = StressDivergenceTensors
variable = wc_y
displacements = 'wc_x wc_y wc_z'
component = 1
base_name = couple
[../]
[./x_moment]
type = MomentBalancing
variable = wc_x
component = 0
[../]
[./y_moment]
type = MomentBalancing
variable = wc_y
component = 1
[../]
[]
[AuxVariables]
[./wc_z]
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningCubic
value_0 = 1
value_residual = 2
internal_limit = 100
[../]
[./cs]
type = TensorMechanicsHardeningCubic
value_0 = 5
value_residual = 3
internal_limit = 100
[../]
[./mc_coh]
type = TensorMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = TensorMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = TensorMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeLayeredCosseratElasticityTensor
young = 2.1
poisson = 0.1
layer_thickness = 1.0
joint_normal_stiffness = 3.0
joint_shear_stiffness = 2.5
[../]
[./strain]
type = ComputeCosseratIncrementalSmallStrain
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5.1 7 2 4 2.1 2'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticCosseratStress
inelastic_models = dp
[../]
[./dp]
type = CappedDruckerPragerCosseratStressUpdate
host_youngs_modulus = 2.1
host_poissons_ratio = 0.1
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 0.1
smoothing_tol = 0.1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/jacobian/cdp_cwp_coss02.i)
#Cosserat capped weak plane and capped drucker prager, coming back to a mix of shear and tensile failure in both
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
Cosserat_rotations = 'wc_x wc_y wc_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[./wc_x]
[../]
[./wc_y]
[../]
[]
[Kernels]
[./cx_elastic]
type = CosseratStressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = CosseratStressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = CosseratStressDivergenceTensors
variable = disp_z
component = 2
[../]
[./x_couple]
type = StressDivergenceTensors
variable = wc_x
displacements = 'wc_x wc_y wc_z'
component = 0
base_name = couple
[../]
[./y_couple]
type = StressDivergenceTensors
variable = wc_y
displacements = 'wc_x wc_y wc_z'
component = 1
base_name = couple
[../]
[./x_moment]
type = MomentBalancing
variable = wc_x
component = 0
[../]
[./y_moment]
type = MomentBalancing
variable = wc_y
component = 1
[../]
[]
[AuxVariables]
[./wc_z]
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[./coh]
type = TensorMechanicsHardeningConstant
value = 2
[../]
[./tanphi]
type = TensorMechanicsHardeningConstant
value = 0.5
[../]
[./tanpsi]
type = TensorMechanicsHardeningConstant
value = 2.055555555556E-01
[../]
[./t_strength]
type = TensorMechanicsHardeningConstant
value = 1
[../]
[./c_strength]
type = TensorMechanicsHardeningConstant
value = 100
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeLayeredCosseratElasticityTensor
young = 10.0
poisson = 0.25
layer_thickness = 10.0
joint_normal_stiffness = 2.5
joint_shear_stiffness = 2.0
[../]
[./strain]
type = ComputeCosseratIncrementalSmallStrain
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '1 0.1 0 0.1 2 0 11 12 10' # note unsymmetric
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticCosseratStress
inelastic_models = 'dp wp'
relative_tolerance = 2.0
absolute_tolerance = 1E6
max_iterations = 1
[../]
[./dp]
type = CappedDruckerPragerCosseratStressUpdate
host_youngs_modulus = 10.0
host_poissons_ratio = 0.25
base_name = dp
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[./wp]
type = CappedWeakPlaneCosseratStressUpdate
base_name = wp
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tensile_strength = t_strength
compressive_strength = c_strength
tip_smoother = 0.1
smoothing_tol = 0.1
yield_function_tol = 1E-11
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
#petsc_options = '-snes_test_display'
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
end_time = 1
dt = 1
type = Transient
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_lode_zero.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = lode_zero
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_lode_zero
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cto28.i)
#Cosserat capped weak plane and capped drucker prager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./cx_elastic]
type = StressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = StressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = StressDivergenceTensors
variable = disp_z
component = 2
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 10.0
poissons_ratio = 0.25
[../]
[./strain]
type = ComputeIncrementalSmallStrain
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 0 0 0 10 0 0 0 10'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = 'dp'
relative_tolerance = 2.0
absolute_tolerance = 1E6
max_iterations = 1
[../]
[./dp]
type = CappedDruckerPragerStressUpdate
base_name = dp
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
end_time = 1
dt = 1
type = Transient
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_outer_tip.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = outer_tip
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_outer_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cto26.i)
# CappedDruckerPrager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningCubic
value_0 = 1
value_residual = 2
internal_limit = 100
[../]
[./cs]
type = TensorMechanicsHardeningCubic
value_0 = 5
value_residual = 3
internal_limit = 100
[../]
[./mc_coh]
type = TensorMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = TensorMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = TensorMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
block = 0
lambda = 0.1
shear_modulus = 1.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = dp
[../]
[./dp]
type = CappedDruckerPragerStressUpdate
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/jacobian/cdpc02.i)
#Cosserat capped weak plane and capped drucker prager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
Cosserat_rotations = 'wc_x wc_y wc_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[./wc_x]
[../]
[./wc_y]
[../]
[]
[Kernels]
[./cx_elastic]
type = CosseratStressDivergenceTensors
variable = disp_x
component = 0
[../]
[./cy_elastic]
type = CosseratStressDivergenceTensors
variable = disp_y
component = 1
[../]
[./cz_elastic]
type = CosseratStressDivergenceTensors
variable = disp_z
component = 2
[../]
[./x_couple]
type = StressDivergenceTensors
variable = wc_x
displacements = 'wc_x wc_y wc_z'
component = 0
base_name = couple
[../]
[./y_couple]
type = StressDivergenceTensors
variable = wc_y
displacements = 'wc_x wc_y wc_z'
component = 1
base_name = couple
[../]
[./x_moment]
type = MomentBalancing
variable = wc_x
component = 0
[../]
[./y_moment]
type = MomentBalancing
variable = wc_y
component = 1
[../]
[]
[AuxVariables]
[./wc_z]
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 4
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeLayeredCosseratElasticityTensor
young = 10.0
poisson = 0.25
layer_thickness = 10.0
joint_normal_stiffness = 2.5
joint_shear_stiffness = 2.0
[../]
[./strain]
type = ComputeCosseratIncrementalSmallStrain
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '5 1 2 1 4 3 2.1 3.1 1'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticCosseratStress
inelastic_models = 'dp'
relative_tolerance = 2.0
absolute_tolerance = 1E6
max_iterations = 1
[../]
[./dp]
type = CappedDruckerPragerCosseratStressUpdate
host_youngs_modulus = 10.0
host_poissons_ratio = 0.25
base_name = dp
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
end_time = 1
dt = 1
type = Transient
[]
(modules/tensor_mechanics/test/tests/drucker_prager/random_hyperbolic.i)
# drucker-prager hyperbolic.
# apply many random large deformations, checking that the algorithm returns correctly to
# the yield surface each time.
[Mesh]
type = GeneratedMesh
dim = 3
nx = 100
ny = 125
nz = 1
xmin = 0
xmax = 100
ymin = 0
ymax = 125
zmin = 0
zmax = 1
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[ICs]
[./x]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_x
[../]
[./y]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_y
[../]
[./z]
type = RandomIC
min = -0.1
max = 0.1
variable = disp_z
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '0'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '0'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '0'
[../]
[]
[AuxVariables]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[]
[Postprocessors]
[./yield_fcn_at_zero]
type = PointValue
point = '0 0 0'
variable = yield_fcn
outputs = 'console'
[../]
[./should_be_zero]
type = FunctionValuePostprocessor
function = should_be_zero_fcn
[../]
[./av_iter]
type = ElementAverageValue
variable = iter
outputs = 'console'
[../]
[]
[Functions]
[./should_be_zero_fcn]
type = ParsedFunction
value = 'if(a<1E-3,0,a)'
vars = 'a'
vals = 'yield_fcn_at_zero'
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 1E3
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 0.1E3
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
use_custom_returnMap = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7E7 1E7'
[../]
[./strain]
type = ComputeFiniteStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./dp]
type = ComputeMultiPlasticityStress
block = 0
max_NR_iterations = 1000
ep_plastic_tolerance = 1E-6
min_stepsize = 1E-3
plastic_models = dp
debug_fspb = crash
deactivation_scheme = safe
[../]
[]
[Executioner]
end_time = 1
dt = 1
type = Transient
[]
[Outputs]
file_base = random_hyperbolic
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_inner_tip.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = inner_tip
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_inner_tip
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_native.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.35E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = native
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_native
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cto25.i)
# CappedDruckerPrager
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
block = 0
lambda = 0.0
shear_modulus = 1.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = dp
[../]
[./dp]
type = CappedDruckerPragerStressUpdate
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform2_native.i)
# apply repeated stretches in x, y and z directions, so that mean_stress = 0
# This maps out the yield surface in the octahedral plane for zero mean stress
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '-1.5E-6*x+2E-6*x*sin(t)'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '2E-6*y*sin(2*t)'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '-2E-6*z*(sin(t)+sin(2*t))'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f0]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[./f1]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 4
mc_interpolation_scheme = native
yield_function_tolerance = 1E-5
internal_constraint_tolerance = 1E-11
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-12
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 100
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform2_native
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_inner_edge.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = inner_edge
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_inner_edge
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/tensor_mechanics/test/tests/jacobian/cto19.i)
# DruckerPragerHyperbolic
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = TensorMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = TensorMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
smoother = 1
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0.7 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '10 0 0 0 10 0 0 0 10'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = dp
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/jacobian/cto21.i)
# DruckerPragerHyperbolic
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = TensorMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = TensorMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
smoother = 1
yield_function_tolerance = 1E-11
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./mc]
type = ComputeMultiPlasticityStress
ep_plastic_tolerance = 1E-11
plastic_models = dp
tangent_operator = nonlinear
min_stepsize = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/jacobian/cto27.i)
# CappedDruckerPrager and CappedWeakPlane, both with all parameters softening/hardening.
# With large tolerance in ComputeMultipleInelasticStress so that only 1 iteration is performed
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[GlobalParams]
block = 0
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = TensorMechanicsHardeningCubic
value_0 = 1
value_residual = 2
internal_limit = 100
[../]
[./cs]
type = TensorMechanicsHardeningCubic
value_0 = 5
value_residual = 3
internal_limit = 100
[../]
[./mc_coh]
type = TensorMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = TensorMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = TensorMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = phi
mc_dilation_angle = psi
yield_function_tolerance = 1E-11 # irrelevant here
internal_constraint_tolerance = 1E-9 # irrelevant here
[../]
[./wp_ts]
type = TensorMechanicsHardeningExponential
value_0 = 100
value_residual = 100
rate = 1
[../]
[./wp_cs]
type = TensorMechanicsHardeningCubic
value_0 = 1
value_residual = 0
internal_0 = -2
internal_limit = 0
[../]
[./wp_coh]
type = TensorMechanicsHardeningExponential
value_0 = 1
value_residual = 2
rate = 1
[../]
[./wp_tanphi]
type = TensorMechanicsHardeningExponential
value_0 = 1.0
value_residual = 0.5
rate = 2
[../]
[./wp_tanpsi]
type = TensorMechanicsHardeningExponential
value_0 = 0.1
value_residual = 0.05
rate = 3
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
block = 0
lambda = 0.1
shear_modulus = 1.0
[../]
[./strain]
type = ComputeIncrementalSmallStrain
displacements = 'disp_x disp_y disp_z'
eigenstrain_names = ini_stress
[../]
[./ini_stress]
type = ComputeEigenstrainFromInitialStress
initial_stress = '6 5 4 5 7 2 4 2 2'
eigenstrain_name = ini_stress
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = 'dp wp'
relative_tolerance = 1E4
absolute_tolerance = 2
tangent_operator = nonlinear
[../]
[./dp]
type = CappedDruckerPragerStressUpdate
base_name = cdp
DP_model = dp
tensile_strength = ts
compressive_strength = cs
yield_function_tol = 1E-11
tip_smoother = 1
smoothing_tol = 1
[../]
[./wp]
type = CappedWeakPlaneStressUpdate
base_name = cwp
cohesion = wp_coh
tan_friction_angle = wp_tanphi
tan_dilation_angle = wp_tanpsi
tensile_strength = wp_ts
compressive_strength = wp_cs
tip_smoother = 0
smoothing_tol = 1
yield_function_tol = 1E-11
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
[]
(modules/tensor_mechanics/test/tests/drucker_prager/small_deform3_lode_zero.i)
# apply repeated stretches in x z directions, and smaller stretches along the y direction,
# so that sigma_I = sigma_II,
# which means that lode angle = 30deg.
# The allows yield surface in meridional plane to be mapped out
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
xmin = -0.5
xmax = 0.5
ymin = -0.5
ymax = 0.5
zmin = -0.5
zmax = 0.5
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[BCs]
[./x]
type = FunctionDirichletBC
variable = disp_x
boundary = 'front back'
function = '1E-6*x*t'
[../]
[./y]
type = FunctionDirichletBC
variable = disp_y
boundary = 'front back'
function = '-1.7E-6*y*t'
[../]
[./z]
type = FunctionDirichletBC
variable = disp_z
boundary = 'front back'
function = '1E-6*z*t'
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./mc_int]
order = CONSTANT
family = MONOMIAL
[../]
[./yield_fcn]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
[../]
[./stress_xz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xz
index_i = 0
index_j = 2
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[../]
[./stress_yz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yz
index_i = 1
index_j = 2
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[../]
[./mc_int_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_internal_parameter
variable = mc_int
[../]
[./yield_fcn_auxk]
type = MaterialStdVectorAux
index = 0
property = plastic_yield_function
variable = yield_fcn
[../]
[]
[Postprocessors]
[./s_xx]
type = PointValue
point = '0 0 0'
variable = stress_xx
[../]
[./s_xy]
type = PointValue
point = '0 0 0'
variable = stress_xy
[../]
[./s_xz]
type = PointValue
point = '0 0 0'
variable = stress_xz
[../]
[./s_yy]
type = PointValue
point = '0 0 0'
variable = stress_yy
[../]
[./s_yz]
type = PointValue
point = '0 0 0'
variable = stress_yz
[../]
[./s_zz]
type = PointValue
point = '0 0 0'
variable = stress_zz
[../]
[./internal]
type = PointValue
point = '0 0 0'
variable = mc_int
[../]
[./f]
type = PointValue
point = '0 0 0'
variable = yield_fcn
[../]
[]
[UserObjects]
[./mc_coh]
type = TensorMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = TensorMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = TensorMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
smoother = 8
mc_interpolation_scheme = lode_zero
yield_function_tolerance = 1E-7
internal_constraint_tolerance = 1E-9
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
block = 0
fill_method = symmetric_isotropic
C_ijkl = '0 1E7'
[../]
[./strain]
type = ComputeIncrementalSmallStrain
block = 0
displacements = 'disp_x disp_y disp_z'
[../]
[./mc]
type = ComputeMultiPlasticityStress
block = 0
ep_plastic_tolerance = 1E-13
plastic_models = mc
debug_fspb = crash
[../]
[]
[Executioner]
end_time = 10
dt = 1
type = Transient
[]
[Outputs]
file_base = small_deform3_lode_zero
exodus = false
[./csv]
type = CSV
[../]
[]
(modules/porous_flow/test/tests/dirackernels/injection_with_plasticity.i)
# Example: Injection into a uniform aquifer 10 x 10 x 5 km
# Drucker-Prager deformation
# Darcy flow
gravity = -9.81
solid_density = 2350
fluid_density = 1000
porosity0 = 0.1
[Mesh]
type = GeneratedMesh
dim = 3
xmin = 0
xmax = 1e4
ymin = 0
ymax = 1e4
zmax = 0
zmin = -5e3
nx = 2
ny = 2
nz = 2
[]
[GlobalParams]
PorousFlowDictator = dictator
gravity = '0 0 ${gravity}'
displacements = 'disp_x disp_y disp_z'
strain_at_nearest_qp = true
[]
[Modules]
[FluidProperties]
[simple_fluid]
type = SimpleFluidProperties
thermal_expansion = 0 # Not doing a thermal simulation
bulk_modulus = 2E9
density0 = ${fluid_density}
viscosity = 5E-4
[]
[]
[]
[PorousFlowFullySaturated]
coupling_type = HydroMechanical
porepressure = pp
dictator_name = dictator
fp = simple_fluid
add_darcy_aux = false
add_stress_aux = false
stabilization = none
[]
[Variables]
[disp_x]
[]
[disp_y]
[]
[disp_z]
[]
[pp]
scaling = 1E6
[InitialCondition]
type = FunctionIC
function = ini_pp
[]
[]
[]
[Functions]
[ini_stress]
type = ParsedFunction
value = '-${gravity} * z * (${solid_density} - ${fluid_density}) * (1.0 - ${porosity0})' # initial effective stress that should result from weight force
[]
[ini_pp]
type = ParsedFunction
value = '${gravity} * z * ${fluid_density} + 1E5'
[]
[]
[BCs]
[p_top]
type = FunctionDirichletBC
variable = pp
boundary = front
function = ini_pp
[]
[x_roller]
type = DirichletBC
variable = disp_x
boundary = 'left right'
value = 0
[]
[y_roller]
type = DirichletBC
variable = disp_y
boundary = 'top bottom'
value = 0
[]
[z_confined]
type = DirichletBC
variable = disp_z
boundary = 'back front'
value = 0
[]
[]
[UserObjects]
[pls_total_outflow_mass]
type = PorousFlowSumQuantity
[]
# Cohesion
[mc_coh]
type = TensorMechanicsHardeningConstant
value = 6.0E6
[]
# Friction angle
[mc_phi]
type = TensorMechanicsHardeningConstant
value = 35.0
convert_to_radians = true
[]
# Dilation angle
[mc_psi]
type = TensorMechanicsHardeningConstant
value = 2
convert_to_radians = true
[]
# Drucker-Prager objects
[dp]
type = TensorMechanicsPlasticDruckerPragerHyperbolic
mc_cohesion = mc_coh
mc_friction_angle = mc_phi
mc_dilation_angle = mc_psi
yield_function_tolerance = 1E-3
internal_constraint_tolerance = 1E-6
[]
# Tensile strength
[tens]
type = TensorMechanicsHardeningConstant
value = 3.0E6
[]
# Compressive strength (cap on yield envelope)
[compr_all]
type = TensorMechanicsHardeningConstant
value = 1E10
[]
[]
[Materials]
[strain]
type = ComputeIncrementalSmallStrain
eigenstrain_names = eigenstrain_all
[]
[eigenstrain_all]
type = ComputeEigenstrainFromInitialStress
initial_stress = 'ini_stress 0 0 0 ini_stress 0 0 0 ini_stress'
eigenstrain_name = eigenstrain_all
[]
[elasticity_tensor]
type = ComputeIsotropicElasticityTensor
bulk_modulus = 3.3333E9
shear_modulus = 2.5E9
[]
[dp_mat]
type = CappedDruckerPragerStressUpdate
DP_model = dp
tensile_strength = tens
compressive_strength = compr_all
smoothing_tol = 1E5
yield_function_tol = 1E-3
tip_smoother = 0
[]
[stress]
type = ComputeMultipleInelasticStress
inelastic_models = dp_mat
[]
# Permeability
[permeability]
type = PorousFlowPermeabilityConst
permeability = '1E-13 0 0 0 1E-13 0 0 0 1E-13'
[]
# Porosity
[porosity]
type = PorousFlowPorosity
porosity_zero = ${porosity0}
biot_coefficient = 1.0
solid_bulk = 1.0 # Required but irrelevant when biot_coefficient is unity
mechanical = true
fluid = true
[]
# Density of saturated rock
[density]
type = PorousFlowTotalGravitationalDensityFullySaturatedFromPorosity
rho_s = ${solid_density}
[]
[]
[DiracKernels]
[pls]
type = PorousFlowPolyLineSink
variable = pp
SumQuantityUO = pls_total_outflow_mass
point_file = two_nodes.bh
function_of = pressure
fluid_phase = 0
p_or_t_vals = '0 1E7'
fluxes = '-1.59 -1.59'
[]
[]
[Preconditioning]
[usual]
type = SMP
full = true
[]
[]
[Executioner]
solve_type = Newton
type = Transient
dt = 1E6
end_time = 1E6
nl_rel_tol = 1E-7
[]
[Outputs]
exodus = true
[]