- internal_constraint_toleranceThe Newton-Raphson process is only deemed converged if the internal constraint is less than this.
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The Newton-Raphson process is only deemed converged if the internal constraint is less than this.
- mc_cohesionA SolidMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb cohesion. Physically this should not be negative.
C++ Type:UserObjectName
Controllable:No
Description:A SolidMechanicsHardening UserObject that defines hardening of the Mohr-Coulomb cohesion. Physically this should not be negative.
- mc_dilation_angleA SolidMechanicsHardening 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 SolidMechanicsHardening 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 SolidMechanicsHardening 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 SolidMechanicsHardening 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
Unit:(no unit assumed)
Controllable:No
Description:If the yield function is less than this amount, the (stress, internal parameter) are deemed admissible.
SolidMechanicsPlasticDruckerPragerHyperbolic
buildconstruction:Undocumented Class
The SolidMechanicsPlasticDruckerPragerHyperbolic 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
- 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.
- 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
Unit:(no unit assumed)
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).
- execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Options:XFEM_MARK, FORWARD, ADJOINT, HOMOGENEOUS_FORWARD, ADJOINT_TIMESTEP_BEGIN, ADJOINT_TIMESTEP_END, NONE, INITIAL, LINEAR, LINEAR_CONVERGENCE, NONLINEAR, NONLINEAR_CONVERGENCE, POSTCHECK, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, MULTIAPP_FIXED_POINT_CONVERGENCE, FINAL, CUSTOM, TRANSFER
Controllable:No
Description:The list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
- execution_order_group0Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.
Default:0
C++ Type:int
Controllable:No
Description:Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.
- 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
Execution Scheduling Parameters
- 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.
- 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
- 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
Unit:(no unit assumed)
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.
- use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Material Property Retrieval Parameters
Input Files
- (modules/solid_mechanics/test/tests/jacobian/cto24.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_inner_edge.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_native.i)
- (modules/solid_mechanics/test/tests/jacobian/cto19.i)
- (modules/solid_mechanics/test/tests/jacobian/cto25.i)
- (modules/solid_mechanics/test/tests/jacobian/cdp_cwp_coss01.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_outer_tip.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_lode_zero.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_inner_tip.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_inner_tip.i)
- (modules/solid_mechanics/test/tests/jacobian/cto29.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_outer_tip.i)
- (modules/solid_mechanics/test/tests/jacobian/cto21.i)
- (modules/solid_mechanics/test/tests/jacobian/cto27.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform2_lode_zero.i)
- (modules/solid_mechanics/test/tests/jacobian/cdp_cwp_coss02.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_inner_edge.i)
- (modules/solid_mechanics/test/tests/jacobian/cdpc01.i)
- (modules/solid_mechanics/test/tests/jacobian/cto20.i)
- (modules/solid_mechanics/test/tests/jacobian/cto28.i)
- (modules/solid_mechanics/test/tests/jacobian/cto26.i)
- (modules/solid_mechanics/test/tests/drucker_prager/random_hyperbolic.i)
- (modules/solid_mechanics/test/tests/jacobian/cdpc02.i)
- (modules/solid_mechanics/test/tests/drucker_prager/small_deform3_native.i)
(modules/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = SolidMechanicsHardeningConstant
value = 2
[../]
[./tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5
[../]
[./tanpsi]
type = SolidMechanicsHardeningConstant
value = 2.055555555556E-01
[../]
[./t_strength]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./c_strength]
type = SolidMechanicsHardeningConstant
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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 = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 2
internal_limit = 100
[../]
[./cs]
type = SolidMechanicsHardeningCubic
value_0 = 5
value_residual = 3
internal_limit = 100
[../]
[./mc_coh]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = SolidMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = SolidMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = SolidMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = SolidMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 2
internal_limit = 100
[../]
[./cs]
type = SolidMechanicsHardeningCubic
value_0 = 5
value_residual = 3
internal_limit = 100
[../]
[./mc_coh]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = SolidMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = SolidMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = SolidMechanicsHardeningExponential
value_0 = 100
value_residual = 100
rate = 1
[../]
[./wp_cs]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 0
internal_0 = -2
internal_limit = 0
[../]
[./wp_coh]
type = SolidMechanicsHardeningExponential
value_0 = 1
value_residual = 2
rate = 1
[../]
[./wp_tanphi]
type = SolidMechanicsHardeningExponential
value_0 = 1.0
value_residual = 0.5
rate = 2
[../]
[./wp_tanpsi]
type = SolidMechanicsHardeningExponential
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 20
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 0
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = SolidMechanicsHardeningConstant
value = 2
[../]
[./tanphi]
type = SolidMechanicsHardeningConstant
value = 0.5
[../]
[./tanpsi]
type = SolidMechanicsHardeningConstant
value = 2.055555555556E-01
[../]
[./t_strength]
type = SolidMechanicsHardeningConstant
value = 1
[../]
[./c_strength]
type = SolidMechanicsHardeningConstant
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
displacements = 'disp_x disp_y disp_z'
[../]
[]
[UserObjects]
[./ts]
type = SolidMechanicsHardeningCubic
value_0 = 1
value_residual = 2
internal_limit = 100
[../]
[./cs]
type = SolidMechanicsHardeningCubic
value_0 = 5
value_residual = 3
internal_limit = 100
[../]
[./mc_coh]
type = SolidMechanicsHardeningCubic
value_0 = 10
value_residual = 1
internal_limit = 100
[../]
[./phi]
type = SolidMechanicsHardeningCubic
value_0 = 0.8
value_residual = 0.4
internal_limit = 50
[../]
[./psi]
type = SolidMechanicsHardeningCubic
value_0 = 0.4
value_residual = 0
internal_limit = 10
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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/solid_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]
[SolidMechanics]
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
expression = 'if(a<1E-3,0,a)'
symbol_names = 'a'
symbol_values = 'yield_fcn_at_zero'
[../]
[]
[UserObjects]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 1E3
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 30
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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/solid_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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./cs]
type = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_coh]
type = SolidMechanicsHardeningConstant
value = 4
[../]
[./phi]
type = SolidMechanicsHardeningConstant
value = 0.8
[../]
[./psi]
type = SolidMechanicsHardeningConstant
value = 0.4
[../]
[./dp]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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/solid_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]
[SolidMechanics]
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 = SolidMechanicsHardeningConstant
value = 10
[../]
[./mc_phi]
type = SolidMechanicsHardeningConstant
value = 35
convert_to_radians = true
[../]
[./mc_psi]
type = SolidMechanicsHardeningConstant
value = 5
convert_to_radians = true
[../]
[./mc]
type = SolidMechanicsPlasticDruckerPragerHyperbolic
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 = ComputeIncrementalStrain
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
[../]
[]