- bottom_leftThe bottom left point (in x,y,z with spaces in-between) of the box to select the nodes.
C++ Type:libMesh::VectorValue
Description:The bottom left point (in x,y,z with spaces in-between) of the box to select the nodes.
- inputThe mesh we want to modify
C++ Type:MeshGeneratorName
Description:The mesh we want to modify
- new_boundaryThe name of the nodeset to create
C++ Type:std::vector
Description:The name of the nodeset to create
- top_rightThe bottom left point (in x,y,z with spaces in-between) of the box to select the nodes.
C++ Type:libMesh::VectorValue
Description:The bottom left point (in x,y,z with spaces in-between) of the box to select the nodes.
BoundingBoxNodeSetGenerator
The MeshGenerator allows the user to specify a bounding box that overlays the mesh domain. All of the nodes inside or ouside of that bounding box are then added to a new nodeset, which is specified by the user.
Assigns all of the nodes either inside or outside of a bounding box to a new nodeset.
Input Parameters
- locationINSIDEControl of where the nodeset is to be set
Default:INSIDE
C++ Type:MooseEnum
Options:INSIDE OUTSIDE
Description:Control of where the nodeset is to be set
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector
Options:
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Options:
Description:Set the enabled status of the MooseObject.
Advanced Parameters
Input Files
- modules/combined/test/tests/phase_field_fracture/crack2d_iso_wo_time.i
- modules/combined/test/tests/phase_field_fracture/crack2d_aniso_hist_false.i
- modules/xfem/test/tests/crack_tip_enrichment/edge_crack_2d.i
- modules/xfem/test/tests/crack_tip_enrichment/penny_crack_3d.i
- modules/combined/test/tests/phase_field_fracture/crack2d_computeCrackedStress_finitestrain_plastic.i
- modules/combined/test/tests/phase_field_fracture/crack2d_computeCrackedStress_finitestrain_elastic.i
- modules/tensor_mechanics/test/tests/shell/static/pinched_cylinder_symm.i
- test/tests/meshgenerators/bounding_box_nodeset_generator/boundingbox_nodeset_inside.i
- modules/combined/test/tests/phase_field_fracture/crack2d_vol_dev.i
- modules/tensor_mechanics/test/tests/capped_weak_plane/pull_and_shear_1step.i
- modules/combined/test/tests/phase_field_fracture/crack2d_linear_fracture_energy.i
- modules/combined/test/tests/phase_field_fracture/crack2d_iso.i
- modules/combined/test/tests/phase_field_fracture/crack2d_computeCrackedStress_smallstrain.i
- modules/combined/test/tests/phase_field_fracture/crack2d_aniso.i
- test/tests/meshgenerators/bounding_box_nodeset_generator/boundingbox_nodeset_outside.i
- modules/tensor_mechanics/test/tests/shell/static/plate_bending.i
- modules/tensor_mechanics/test/tests/capped_weak_plane/push_and_shear.i
- modules/tensor_mechanics/test/tests/capped_weak_plane/pull_and_shear.i
modules/combined/test/tests/phase_field_fracture/crack2d_iso_wo_time.i
#This input does not add time derivative kernel for phase field equation
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 20
ny = 10
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Modules]
[./TensorMechanics]
[./Master]
[./mech]
add_variables = true
strain = SMALL
additional_generate_output = 'stress_yy'
save_in = 'resid_x resid_y'
[../]
[../]
[../]
[]
[Variables]
[./c]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxVariables]
[./resid_x]
[../]
[./resid_y]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[./ACBulk]
type = AllenCahn
variable = c
f_name = F
[../]
[./ACInterface]
type = ACInterface
variable = c
kappa_name = kappa_op
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = top
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.04 1e-4'
[../]
[./define_mobility]
type = ParsedMaterial
material_property_names = 'gc_prop visco'
f_name = L
function = '1.0/(gc_prop * visco)'
[../]
[./define_kappa]
type = ParsedMaterial
material_property_names = 'gc_prop l'
f_name = kappa_op
function = 'gc_prop * l'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '120.0 80.0'
fill_method = symmetric_isotropic
[../]
[./elastic]
type = ComputeLinearElasticPFFractureStress
c = c
E_name = 'elastic_energy'
D_name = 'degradation'
F_name = 'local_fracture_energy'
decomposition_type = strain_spectral
[../]
[./degradation]
type = DerivativeParsedMaterial
f_name = degradation
args = 'c'
function = '(1.0-c)^2*(1.0 - eta) + eta'
constant_names = 'eta'
constant_expressions = '0.0'
derivative_order = 2
[../]
[./local_fracture_energy]
type = DerivativeParsedMaterial
f_name = local_fracture_energy
args = 'c'
material_property_names = 'gc_prop l'
function = 'c^2 * gc_prop / 2 / l'
derivative_order = 2
[../]
[./fracture_driving_energy]
type = DerivativeSumMaterial
args = c
sum_materials = 'elastic_energy local_fracture_energy'
derivative_order = 2
f_name = F
[../]
[]
[Postprocessors]
[./resid_x]
type = NodalSum
variable = resid_x
boundary = 2
[../]
[./resid_y]
type = NodalSum
variable = resid_y
boundary = 2
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
petsc_options_value = 'asm 31 preonly lu 1'
nl_rel_tol = 1e-8
l_max_its = 10
nl_max_its = 10
dt = 1e-4
dtmin = 1e-4
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_aniso_hist_false.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 20
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Modules]
[./TensorMechanics]
[./Master]
[./All]
add_variables = true
strain = SMALL
additional_generate_output = 'strain_yy stress_yy'
planar_formulation = PLANE_STRAIN
[../]
[../]
[../]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = F
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.05 1e-6'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '127.0 70.8 70.8 127.0 70.8 127.0 73.55 73.55 73.55'
fill_method = symmetric9
euler_angle_1 = 30
euler_angle_2 = 0
euler_angle_3 = 0
[../]
[./define_mobility]
type = ParsedMaterial
material_property_names = 'gc_prop visco'
f_name = L
function = '1.0/(gc_prop * visco)'
[../]
[./define_kappa]
type = ParsedMaterial
material_property_names = 'gc_prop l'
f_name = kappa_op
function = 'gc_prop * l'
[../]
[./damage_stress]
type = ComputeLinearElasticPFFractureStress
c = c
E_name = 'elastic_energy'
D_name = 'degradation'
F_name = 'local_fracture_energy'
decomposition_type = stress_spectral
[../]
[./degradation]
type = DerivativeParsedMaterial
f_name = degradation
args = 'c'
function = '(1.0-c)^2*(1.0 - eta) + eta'
constant_names = 'eta'
constant_expressions = '1.0e-6'
derivative_order = 2
[../]
[./local_fracture_energy]
type = DerivativeParsedMaterial
f_name = local_fracture_energy
args = 'c'
material_property_names = 'gc_prop l'
function = 'c^2 * gc_prop / 2 / l'
derivative_order = 2
[../]
[./fracture_driving_energy]
type = DerivativeSumMaterial
args = c
sum_materials = 'elastic_energy local_fracture_energy'
derivative_order = 2
f_name = F
[../]
[]
[Postprocessors]
[./av_stress_yy]
type = ElementAverageValue
variable = stress_yy
[../]
[./av_strain_yy]
type = SideAverageValue
variable = disp_y
boundary = top
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_factor_mat_solving_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1e-8
l_tol = 1e-4
l_max_its = 100
nl_max_its = 10
dt = 2e-6
num_steps = 5
[]
[Outputs]
exodus = true
[]
modules/xfem/test/tests/crack_tip_enrichment/edge_crack_2d.i
[XFEM]
qrule = volfrac
output_cut_plane = true
use_crack_tip_enrichment = true
crack_front_definition = crack_tip
enrichment_displacements = 'enrich1_x enrich2_x enrich3_x enrich4_x enrich1_y enrich2_y enrich3_y enrich4_y'
displacements = 'disp_x disp_y'
cut_off_boundary = all
cut_off_radius = 0.2
[]
[UserObjects]
[./line_seg_cut_uo]
type = LineSegmentCutUserObject
cut_data = '0.0 1.0 0.5 1.0'
time_start_cut = 0.0
time_end_cut = 0.0
[../]
[./crack_tip]
type = CrackFrontDefinition
crack_direction_method = CrackDirectionVector
crack_front_points = '0.5 1.0 0'
crack_direction_vector = '1 0 0'
2d = true
axis_2d = 2
[../]
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 5
ny = 9
xmin = 0.0
xmax = 1.0
ymin = 0.0
ymax = 2.0
elem_type = QUAD4
[]
[./all_node]
type = BoundingBoxNodeSetGenerator
new_boundary = 'all'
top_right = '1 2 0'
bottom_left = '0 0 0'
input = gen
[../]
[./right_bottom_node]
type = ExtraNodesetGenerator
new_boundary = 'right_bottom_node'
coord = '1.0 0.0'
input = all_node
[../]
[./right_top_node]
type = ExtraNodesetGenerator
new_boundary = 'right_top_node'
coord = '1.0 2.0'
input = right_bottom_node
[../]
[]
[Variables]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxVariables]
[./saved_x]
[../]
[./saved_y]
[../]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./vonmises]
order = CONSTANT
family = MONOMIAL
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y'
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[../]
[./stress_xy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xy
index_i = 0
index_j = 1
execute_on = timestep_end
[../]
[./vonmises]
type = RankTwoScalarAux
rank_two_tensor = stress
variable = vonmises
scalar_type = vonmisesStress
execute_on = timestep_end
[../]
[]
[BCs]
[./top_y]
type = Pressure
variable = disp_y
boundary = top
component = 1
factor = -1
[../]
[./bottom_y]
type = Pressure
variable = disp_y
boundary = bottom
component = 1
factor = -1
[../]
[./fix_y]
type = DirichletBC
boundary = right_bottom_node
variable = disp_y
value = 0.0
[../]
[./fix_x]
type = DirichletBC
boundary = right_bottom_node
variable = disp_x
value = 0.0
[../]
[./fix_x2]
type = DirichletBC
boundary = right_top_node
variable = disp_x
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./strain]
type = ComputeCrackTipEnrichmentSmallStrain
displacements = 'disp_x disp_y'
crack_front_definition = crack_tip
enrichment_displacements = 'enrich1_x enrich2_x enrich3_x enrich4_x enrich1_y enrich2_y enrich3_y enrich4_y'
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
line_search = 'none'
# Since we do not sub-triangularize the tip element,
# we need to use higher order quadrature rule to improve
# integration accuracy.
# Here second = SECOND is for regression test only.
# However, order = SIXTH is recommended.
[./Quadrature]
type = GAUSS
order = SECOND
[../]
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
# controls for linear iterations
l_max_its = 10
l_tol = 1e-4
# controls for nonlinear iterations
nl_max_its = 100
nl_rel_tol = 1e-12 #11
nl_abs_tol = 1e-12 #12
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
dtmin = 1.0
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Outputs]
file_base = edge_crack_2d_out
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
modules/xfem/test/tests/crack_tip_enrichment/penny_crack_3d.i
[XFEM]
qrule = volfrac
output_cut_plane = true
use_crack_tip_enrichment = true
crack_front_definition = crack_front
enrichment_displacements = 'enrich1_x enrich2_x enrich3_x enrich4_x enrich1_y enrich2_y enrich3_y enrich4_y enrich1_z enrich2_z enrich3_z enrich4_z'
displacements = 'disp_x disp_y disp_z'
cut_off_boundary = all
cut_off_radius = 0.3
[]
[UserObjects]
[./circle_cut_uo]
type = CircleCutUserObject
cut_data = '0 0 0
0.5 0 0
0 0.5 0'
[../]
[./crack_front]
type = CrackFrontDefinition
crack_direction_method = CurvedCrackFront
crack_front_points = '0.500000000000000 0 0
0.000000000000000 0.500000000000000 0
-0.500000000000000 0.000000000000000 0
-0.000000000000000 -0.500000000000000 0'
[../]
[]
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 3
nx = 9
ny = 9
nz = 3
xmin = -1.0
xmax = 1.0
ymin = -1.0
ymax = 1.0
zmin = -0.75
zmax = 0.75
elem_type = HEX8
[]
[./all_node]
type = BoundingBoxNodeSetGenerator
input = gen
new_boundary = 'all'
top_right = '1 1 1'
bottom_left = '-1 -1 -1'
[../]
[]
[Variables]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[./disp_z]
order = FIRST
family = LAGRANGE
[../]
[]
[AuxVariables]
[./stress_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./stress_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./SED]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_xx]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_xx
index_i = 0
index_j = 0
execute_on = timestep_end
[../]
[./stress_yy]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
execute_on = timestep_end
[../]
[./stress_zz]
type = RankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
execute_on = timestep_end
[../]
[]
[Kernels]
[./TensorMechanics]
displacements = 'disp_x disp_y disp_z'
use_displaced_mesh = false
volumetric_locking_correction = false
[../]
[]
[BCs]
[./top_z]
type = Pressure
variable = disp_z
boundary = front
component = 2
factor = -1
[../]
[./bottom_x]
type = DirichletBC
boundary = back
variable = disp_x
value = 0.0
[../]
[./bottom_y]
type = DirichletBC
boundary = back
variable = disp_y
value = 0.0
[../]
[./bottom_z]
type = DirichletBC
boundary = back
variable = disp_z
value = 0.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeIsotropicElasticityTensor
youngs_modulus = 1e6
poissons_ratio = 0.3
[../]
[./strain]
type = ComputeCrackTipEnrichmentSmallStrain
displacements = 'disp_x disp_y disp_z'
crack_front_definition = crack_front
enrichment_displacements = 'enrich1_x enrich2_x enrich3_x enrich4_x enrich1_y enrich2_y enrich3_y enrich4_y enrich1_z enrich2_z enrich3_z enrich4_z'
[../]
[./stress]
type = ComputeLinearElasticStress
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
line_search = 'none'
[./Quadrature]
type = GAUSS
order = SECOND
[../]
# controls for linear iterations
l_max_its = 10
l_tol = 1e-2
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-12
nl_abs_tol = 1e-12
# time control
start_time = 0.0
dt = 1.0
end_time = 1.0
[]
[Outputs]
exodus = true
[./console]
type = Console
output_linear = true
[../]
[]
modules/combined/test/tests/phase_field_fracture/crack2d_computeCrackedStress_finitestrain_plastic.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 20
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[AuxVariables]
[./strain_yy]
family = MONOMIAL
order = CONSTANT
[../]
[./elastic_strain_yy]
family = MONOMIAL
order = CONSTANT
[../]
[./plastic_strain_yy]
family = MONOMIAL
order = CONSTANT
[../]
[./uncracked_stress_yy]
family = MONOMIAL
order = CONSTANT
[../]
[]
[Modules]
[./TensorMechanics]
[./Master]
[./All]
add_variables = true
strain = FINITE
planar_formulation = PLANE_STRAIN
additional_generate_output = 'stress_yy vonmises_stress'
strain_base_name = uncracked
[../]
[../]
[../]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = E_el
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[./off_disp]
type = AllenCahnElasticEnergyOffDiag
variable = c
displacements = 'disp_x disp_y'
mob_name = L
[../]
[]
[AuxKernels]
[./strain_yy]
type = RankTwoAux
variable = strain_yy
rank_two_tensor = uncracked_mechanical_strain
index_i = 1
index_j = 1
execute_on = TIMESTEP_END
[../]
[./elastic_strain_yy]
type = RankTwoAux
variable = elastic_strain_yy
rank_two_tensor = uncracked_elastic_strain
index_i = 1
index_j = 1
execute_on = TIMESTEP_END
[../]
[./plastic_strain_yy]
type = RankTwoAux
variable = plastic_strain_yy
rank_two_tensor = uncracked_plastic_strain
index_i = 1
index_j = 1
execute_on = TIMESTEP_END
[../]
[./uncracked_stress_yy]
type = RankTwoAux
variable = uncracked_stress_yy
rank_two_tensor = uncracked_stress
index_i = 1
index_j = 1
execute_on = TIMESTEP_END
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[]
[Functions]
[./hf]
type = PiecewiseLinear
x = '0 0.001 0.003 0.023'
y = '0.85 1.0 1.25 1.5'
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.05 5e-3'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '120.0 80.0'
fill_method = symmetric_isotropic
base_name = uncracked
[../]
[./isotropic_plasticity]
type = IsotropicPlasticityStressUpdate
yield_stress = 0.85
hardening_function = hf
base_name = uncracked
[../]
[./radial_return_stress]
type = ComputeMultipleInelasticStress
tangent_operator = elastic
inelastic_models = 'isotropic_plasticity'
base_name = uncracked
[../]
[./cracked_stress]
type = ComputeCrackedStress
c = c
F_name = E_el
use_current_history_variable = true
uncracked_base_name = uncracked
finite_strain_model = true
[../]
[]
[Postprocessors]
[./av_stress_yy]
type = ElementAverageValue
variable = stress_yy
[../]
[./av_strain_yy]
type = SideAverageValue
variable = disp_y
boundary = top
[../]
[./av_uncracked_stress_yy]
type = ElementAverageValue
variable = uncracked_stress_yy
[../]
[./max_c]
type = ElementExtremeValue
variable = c
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_factor_mat_solving_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1e-8
l_tol = 1e-4
l_max_its = 100
nl_max_its = 10
dt = 2.0e-5
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_computeCrackedStress_finitestrain_elastic.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 20
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[AuxVariables]
[./strain_yy]
family = MONOMIAL
order = CONSTANT
[../]
[]
[Modules]
[./TensorMechanics]
[./Master]
[./All]
add_variables = true
strain = FINITE
planar_formulation = PLANE_STRAIN
additional_generate_output = 'stress_yy'
strain_base_name = uncracked
[../]
[../]
[../]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = E_el
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[./off_disp]
type = AllenCahnElasticEnergyOffDiag
variable = c
displacements = 'disp_x disp_y'
mob_name = L
[../]
[]
[AuxKernels]
[./strain_yy]
type = RankTwoAux
variable = strain_yy
rank_two_tensor = uncracked_mechanical_strain
index_i = 1
index_j = 1
execute_on = TIMESTEP_END
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.05 1e-4'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '120.0 80.0'
fill_method = symmetric_isotropic
base_name = uncracked
[../]
[./elastic]
type = ComputeFiniteStrainElasticStress
base_name = uncracked
[../]
[./cracked_stress]
type = ComputeCrackedStress
c = c
kdamage = 1e-5
F_name = E_el
use_current_history_variable = true
uncracked_base_name = uncracked
finite_strain_model = true
[../]
[]
[Postprocessors]
[./av_stress_yy]
type = ElementAverageValue
variable = stress_yy
[../]
[./av_strain_yy]
type = SideAverageValue
variable = disp_y
boundary = top
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_factor_mat_solving_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1e-8
l_tol = 1e-4
l_max_its = 100
nl_max_its = 10
dt = 3e-5
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/tensor_mechanics/test/tests/shell/static/pinched_cylinder_symm.i
# Test for displacement of pinched cylinder
# Ref: Figure 10 and Table 6 from Dvorkin and Bathe, Eng. Comput., Vol. 1, 1984.
# A cylinder of radius 1 m and length 2 m (along Z axis) with clamped ends
# (at z = 0 and 2 m) is pinched at mid-length by placing point loads of 10 N
# at (1, 0, 1) and (-1, 0, 1). Due to the symmetry of the problem, only 1/8th
# of the cylinder needs to be modeled.
# The normalized series solution for the displacement at the loading point is
# w = Wc E t / P = 164.24; where Wc is the displacement in m, E is the Young's
# modulus, t is the thickness and P is the point load.
# For this problem, E = 1e6 Pa, L = 2 m, R = 1 m, t = 0.01 m, P = 10 N and
# Poisson's ratio = 0.3. FEM results from different mesh discretizations are
# presented below. Only the 10x10 mesh is included as a test.
# Mesh of 1/8 cylinder | FEM/analytical (Moose) | FEM/analytical (Dvorkin)
# |ratio of normalized disp.| ratio of normalized disp.
#----------------------|-------------------------|-------------------------
# 10 x 10 | 0.806 | 0.83
# 20 x 20 | 1.06 | 0.96
# 40 x 40 | 0.95 | -
# 80 x 160 | 0.96 | -
# The results from FEM analysis matches well with the series solution and with
# the solution presented by Dvorkin and Bathe (1984).
[Mesh]
[./mesh]
type = FileMeshGenerator
file = pinched_cyl_10_10.msh
[../]
[./block_100]
type = ParsedSubdomainMeshGenerator
input = mesh
combinatorial_geometry = 'x > -1.1 & x < 1.1 & y > -1.1 & y < 1.1 & z > -0.1 & z < 2.1'
block_id = 100
[../]
[./nodeset_1]
type = BoundingBoxNodeSetGenerator
input = block_100
top_right = '1.1 1.1 0'
bottom_left = '-1.1 -1.1 0'
new_boundary = 'CD' #CD
[../]
[./nodeset_2]
type = BoundingBoxNodeSetGenerator
input = nodeset_1
top_right = '1.1 1.1 1.0'
bottom_left = '-1.1 -1.1 1.0'
new_boundary = 'AB' #AB
[../]
[./nodeset_3]
type = BoundingBoxNodeSetGenerator
input = nodeset_2
top_right = '0.02 1.1 1.0'
bottom_left = '-0.1 0.98 0.0'
new_boundary = 'AD' #AD
[../]
[./nodeset_4]
type = BoundingBoxNodeSetGenerator
input = nodeset_3
top_right = '1.1 0.02 1.0'
bottom_left = '0.98 -0.1 0.0'
new_boundary = 'BC' #BC
[../]
[]
[Variables]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[./disp_z]
order = FIRST
family = LAGRANGE
[../]
[./rot_x]
order = FIRST
family = LAGRANGE
[../]
[./rot_y]
order = FIRST
family = LAGRANGE
[../]
[]
[BCs]
[./simply_support_x]
type = DirichletBC
variable = disp_x
boundary = 'CD AD'
value = 0.0
[../]
[./simply_support_y]
type = DirichletBC
variable = disp_y
boundary = 'CD BC'
value = 0.0
[../]
[./simply_support_z]
type = DirichletBC
variable = disp_z
boundary = 'CD AB'
value = 0.0
[../]
[./simply_support_rot_x]
type = DirichletBC
variable = rot_x
boundary = 'CD BC'
value = 0.0
[../]
[./simply_support_rot_y]
type = DirichletBC
variable = rot_y
boundary = 'CD AD'
value = 0.0
[../]
[]
[DiracKernels]
[./point1]
type = ConstantPointSource
variable = disp_x
point = '1 0 1'
value = -2.5 # P = 10
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = NEWTON
line_search = 'none'
nl_rel_tol = 1e-10
nl_abs_tol = 1e-8
dt = 1.0
dtmin = 1.0
end_time = 1.0
[]
[Kernels]
[./solid_disp_x]
type = ADStressDivergenceShell
block = '100'
component = 0
variable = disp_x
through_thickness_order = SECOND
[../]
[./solid_disp_y]
type = ADStressDivergenceShell
block = '100'
component = 1
variable = disp_y
through_thickness_order = SECOND
[../]
[./solid_disp_z]
type = ADStressDivergenceShell
block = '100'
component = 2
variable = disp_z
through_thickness_order = SECOND
[../]
[./solid_rot_x]
type = ADStressDivergenceShell
block = '100'
component = 3
variable = rot_x
through_thickness_order = SECOND
[../]
[./solid_rot_y]
type = ADStressDivergenceShell
block = '100'
component = 4
variable = rot_y
through_thickness_order = SECOND
[../]
[]
[Materials]
[./elasticity]
type = ADComputeIsotropicElasticityTensorShell
youngs_modulus = 1e6
poissons_ratio = 0.3
block = '100'
through_thickness_order = SECOND
[../]
[./strain]
type = ADComputeIncrementalShellStrain
block = '100'
displacements = 'disp_x disp_y disp_z'
rotations = 'rot_x rot_y'
thickness = 0.01
through_thickness_order = SECOND
[../]
[./stress]
type = ADComputeShellStress
block = '100'
through_thickness_order = SECOND
[../]
[]
[Postprocessors]
[./disp_z2]
type = PointValue
point = '1 0 1'
variable = disp_x
[../]
[]
[Outputs]
exodus = true
[]
test/tests/meshgenerators/bounding_box_nodeset_generator/boundingbox_nodeset_inside.i
[Mesh]
[./gmg]
type = GeneratedMeshGenerator
dim = 2
nx = 2
ny = 2
parallel_type = replicated
[]
[./nodeset]
type = BoundingBoxNodeSetGenerator
input = gmg
new_boundary = middle_node
top_right = '1.1 1.1 0'
bottom_left = '0.49 0.49 0'
[]
[]
[Outputs]
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_vol_dev.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 20
ny = 10
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Modules]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = F
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[./TensorMechanics]
[./Master]
[./mech]
add_variables = true
strain = SMALL
additional_generate_output = 'stress_yy'
save_in = 'resid_x resid_y'
[../]
[../]
[../]
[]
[AuxVariables]
[./resid_x]
[../]
[./resid_y]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = top
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.04 1e-4'
[../]
[./define_mobility]
type = ParsedMaterial
material_property_names = 'gc_prop visco'
f_name = L
function = '1.0/(gc_prop * visco)'
[../]
[./define_kappa]
type = ParsedMaterial
material_property_names = 'gc_prop l'
f_name = kappa_op
function = 'gc_prop * l'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '120.0 80.0'
fill_method = symmetric_isotropic
[../]
[./damage_stress]
type = ComputeLinearElasticPFFractureStress
c = c
E_name = 'elastic_energy'
D_name = 'degradation'
F_name = 'local_fracture_energy'
decomposition_type = strain_vol_dev
[../]
[./degradation]
type = DerivativeParsedMaterial
f_name = degradation
args = 'c'
function = '(1.0-c)^2*(1.0 - eta) + eta'
constant_names = 'eta'
constant_expressions = '0.0'
derivative_order = 2
[../]
[./local_fracture_energy]
type = DerivativeParsedMaterial
f_name = local_fracture_energy
args = 'c'
material_property_names = 'gc_prop l'
function = 'c^2 * gc_prop / 2 / l'
derivative_order = 2
[../]
[./fracture_driving_energy]
type = DerivativeSumMaterial
args = c
sum_materials = 'elastic_energy local_fracture_energy'
derivative_order = 2
f_name = F
[../]
[]
[Postprocessors]
[./resid_x]
type = NodalSum
variable = resid_x
boundary = 2
[../]
[./resid_y]
type = NodalSum
variable = resid_y
boundary = 2
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
petsc_options_value = 'asm 31 preonly lu 1'
nl_rel_tol = 1e-8
l_max_its = 10
nl_max_its = 10
dt = 1e-4
dtmin = 1e-4
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/tensor_mechanics/test/tests/capped_weak_plane/pull_and_shear_1step.i
# Part of the bottom (minimum z) is pulled down by a Preset displacement
# This causes tensile failure in the elements immediately above.
# Because only the bottom row of elements ever fail, and because these
# fail in the first nonlinear step, Moose correctly converges in
# 1 nonlinear step, despite this problem being inelastic.
# (If the problem had lower cohesion, then the top row would also
# fail, but in the second nonlinear step, and so the simulation
# would require at least two nonlinear steps.)
[Mesh]
[generated_mesh]
type = GeneratedMeshGenerator
dim = 3
nx = 2
ny = 1
nz = 2
xmin = -10
xmax = 10
ymin = -10
ymax = 10
zmin = -100
zmax = 0
[]
[bottomz_middle]
type = BoundingBoxNodeSetGenerator
new_boundary = bottomz_middle
bottom_left = '-1 -15 -105'
top_right = '1 15 -95'
input = generated_mesh
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./TensorMechanics]
[../]
[]
[BCs]
[./no_x2]
type = DirichletBC
variable = disp_x
boundary = right
value = 0.0
[../]
[./no_x1]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./no_y1]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./no_y2]
type = DirichletBC
variable = disp_y
boundary = top
value = 0.0
[../]
[./z_fixed_sides_xmin]
type = DirichletBC
variable = disp_z
boundary = left
value = 0
[../]
[./z_fixed_sides_xmax]
type = DirichletBC
variable = disp_z
boundary = right
value = 0
[../]
[./bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = bottomz_middle
function = -1
[../]
[]
[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
[../]
[./strainp_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f_shear]
order = CONSTANT
family = MONOMIAL
[../]
[./f_tensile]
order = CONSTANT
family = MONOMIAL
[../]
[./f_compressive]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl_shear]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl_tensile]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./ls]
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
[../]
[./strainp_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xx
index_i = 0
index_j = 0
[../]
[./strainp_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xy
index_i = 0
index_j = 1
[../]
[./strainp_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xz
index_i = 0
index_j = 2
[../]
[./strainp_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_yy
index_i = 1
index_j = 1
[../]
[./strainp_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_yz
index_i = 1
index_j = 2
[../]
[./strainp_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_zz
index_i = 2
index_j = 2
[../]
[./straint_xx]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xx
index_i = 0
index_j = 0
[../]
[./straint_xy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xy
index_i = 0
index_j = 1
[../]
[./straint_xz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xz
index_i = 0
index_j = 2
[../]
[./straint_yy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_yy
index_i = 1
index_j = 1
[../]
[./straint_yz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_yz
index_i = 1
index_j = 2
[../]
[./straint_zz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_zz
index_i = 2
index_j = 2
[../]
[./f_shear]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f_shear
[../]
[./f_tensile]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f_tensile
[../]
[./f_compressive]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f_compressive
[../]
[./intnl_shear]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl_shear
[../]
[./intnl_tensile]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 1
variable = intnl_tensile
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./ls]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = ls
[../]
[]
[UserObjects]
[./coh_irrelevant]
type = TensorMechanicsHardeningCubic
value_0 = 1E60
value_residual = 1E60
internal_limit = 0.01E8
[../]
[./tanphi]
type = TensorMechanicsHardeningCubic
value_0 = 0.5
value_residual = 0.2
internal_limit = 0.01E8
[../]
[./tanpsi]
type = TensorMechanicsHardeningConstant
value = 0.166666666667
[../]
[./t_strength]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./c_strength]
type = TensorMechanicsHardeningCubic
value_0 = 1E80
value_residual = 1E80
internal_limit = 0.01
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '6.4E9 6.4E9' # young 16MPa, Poisson 0.25
[../]
[./strain]
type = ComputeIncrementalSmallStrain
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = stress
tangent_operator = nonlinear
perform_finite_strain_rotations = false
[../]
[./stress]
type = CappedWeakPlaneStressUpdate
cohesion = coh_irrelevant
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tensile_strength = t_strength
compressive_strength = c_strength
max_NR_iterations = 1
tip_smoother = 0
smoothing_tol = 0
yield_function_tol = 1E-2
perfect_guess = true
min_step_size = 1
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options = '-snes_converged_reason -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
petsc_options = '-snes_converged_reason'
line_search = bt
nl_abs_tol = 1E1
nl_rel_tol = 1e-5
l_tol = 1E-10
l_max_its = 100
nl_max_its = 100
end_time = 1.0
dt = 1.0
type = Transient
[]
[Outputs]
file_base = pull_and_shear_1step
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_linear_fracture_energy.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 20
ny = 10
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Modules]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = F
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[./TensorMechanics]
[./Master]
[./mech]
add_variables = true
strain = SMALL
additional_generate_output = 'stress_yy'
save_in = 'resid_x resid_y'
[../]
[../]
[../]
[]
[AuxVariables]
[./resid_x]
[../]
[./resid_y]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = top
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.04 1e-4'
[../]
[./define_mobility]
type = ParsedMaterial
material_property_names = 'gc_prop visco'
f_name = L
function = '1.0/(gc_prop * visco)'
[../]
[./define_kappa]
type = ParsedMaterial
material_property_names = 'gc_prop l'
f_name = kappa_op
function = 'gc_prop * l * 3 / 4'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '120.0 80.0'
fill_method = symmetric_isotropic
[../]
[./elastic]
type = ComputeLinearElasticPFFractureStress
c = c
E_name = 'elastic_energy'
D_name = 'degradation'
F_name = 'fracture_energy'
barrier_energy = 'barrier'
decomposition_type = strain_spectral
[../]
[./degradation]
type = DerivativeParsedMaterial
f_name = degradation
args = 'c'
function = '(1.0-c)^2*(1.0 - eta) + eta'
constant_names = 'eta'
constant_expressions = '0.0'
derivative_order = 2
[../]
[./fracture_energy]
type = DerivativeParsedMaterial
f_name = fracture_energy
args = 'c'
material_property_names = 'gc_prop l'
function = '3 * gc_prop / (8 * l) * c'
derivative_order = 2
[../]
[./fracture_driving_energy]
type = DerivativeSumMaterial
args = c
sum_materials = 'elastic_energy fracture_energy'
derivative_order = 2
f_name = F
[../]
[./barrier_energy]
type = ParsedMaterial
f_name = barrier
material_property_names = 'gc_prop l'
function = '3 * gc_prop / 16 / l'
[../]
[]
[Postprocessors]
[./resid_x]
type = NodalSum
variable = resid_x
boundary = 2
[../]
[./resid_y]
type = NodalSum
variable = resid_y
boundary = 2
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
petsc_options_value = 'asm 31 preonly lu 1'
nl_rel_tol = 1e-8
l_max_its = 10
nl_max_its = 20
dt = 1e-4
dtmin = 1e-4
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_iso.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 20
ny = 10
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Modules]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = F
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[./TensorMechanics]
[./Master]
[./mech]
add_variables = true
strain = SMALL
additional_generate_output = 'stress_yy'
save_in = 'resid_x resid_y'
[../]
[../]
[../]
[]
[AuxVariables]
[./resid_x]
[../]
[./resid_y]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = top
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.04 1e-4'
[../]
[./define_mobility]
type = ParsedMaterial
material_property_names = 'gc_prop visco'
f_name = L
function = '1.0/(gc_prop * visco)'
[../]
[./define_kappa]
type = ParsedMaterial
material_property_names = 'gc_prop l'
f_name = kappa_op
function = 'gc_prop * l'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '120.0 80.0'
fill_method = symmetric_isotropic
[../]
[./damage_stress]
type = ComputeLinearElasticPFFractureStress
c = c
E_name = 'elastic_energy'
D_name = 'degradation'
F_name = 'local_fracture_energy'
decomposition_type = strain_spectral
[../]
[./degradation]
type = DerivativeParsedMaterial
f_name = degradation
args = 'c'
function = '(1.0-c)^2*(1.0 - eta) + eta'
constant_names = 'eta'
constant_expressions = '0.0'
derivative_order = 2
[../]
[./local_fracture_energy]
type = DerivativeParsedMaterial
f_name = local_fracture_energy
args = 'c'
material_property_names = 'gc_prop l'
function = 'c^2 * gc_prop / 2 / l'
derivative_order = 2
[../]
[./fracture_driving_energy]
type = DerivativeSumMaterial
args = c
sum_materials = 'elastic_energy local_fracture_energy'
derivative_order = 2
f_name = F
[../]
[]
[Postprocessors]
[./resid_x]
type = NodalSum
variable = resid_x
boundary = 2
[../]
[./resid_y]
type = NodalSum
variable = resid_y
boundary = 2
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
petsc_options_value = 'asm 31 preonly lu 1'
nl_rel_tol = 1e-8
l_max_its = 10
nl_max_its = 10
dt = 1e-4
dtmin = 1e-4
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_computeCrackedStress_smallstrain.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 20
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[AuxVariables]
[./strain_yy]
family = MONOMIAL
order = CONSTANT
[../]
[]
[Modules]
[./TensorMechanics]
[./Master]
[./All]
add_variables = true
strain = SMALL
planar_formulation = PLANE_STRAIN
additional_generate_output = 'stress_yy'
strain_base_name = uncracked
[../]
[../]
[../]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = E_el
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[./off_disp]
type = AllenCahnElasticEnergyOffDiag
variable = c
displacements = 'disp_x disp_y'
mob_name = L
[../]
[]
[AuxKernels]
[./strain_yy]
type = RankTwoAux
variable = strain_yy
rank_two_tensor = uncracked_mechanical_strain
index_i = 1
index_j = 1
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.05 1e-6'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '127.0 70.8 70.8 127.0 70.8 127.0 73.55 73.55 73.55'
fill_method = symmetric9
base_name = uncracked
euler_angle_1 = 30
euler_angle_2 = 0
euler_angle_3 = 0
[../]
[./elastic]
type = ComputeLinearElasticStress
base_name = uncracked
[../]
[./cracked_stress]
type = ComputeCrackedStress
c = c
kdamage = 1e-6
F_name = E_el
use_current_history_variable = true
uncracked_base_name = uncracked
[../]
[]
[Postprocessors]
[./av_stress_yy]
type = ElementAverageValue
variable = stress_yy
[../]
[./av_strain_yy]
type = SideAverageValue
variable = disp_y
boundary = top
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_factor_mat_solving_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1e-8
l_tol = 1e-4
l_max_its = 100
nl_max_its = 10
dt = 5e-5
num_steps = 2
[]
[Outputs]
exodus = true
[]
modules/combined/test/tests/phase_field_fracture/crack2d_aniso.i
#This input uses PhaseField-Nonconserved Action to add phase field fracture bulk rate kernels
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 20
ymax = 0.5
[]
[./noncrack]
type = BoundingBoxNodeSetGenerator
new_boundary = noncrack
bottom_left = '0.5 0 0'
top_right = '1 0 0'
input = gen
[../]
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Modules]
[./TensorMechanics]
[./Master]
[./All]
add_variables = true
strain = SMALL
additional_generate_output = 'strain_yy stress_yy'
planar_formulation = PLANE_STRAIN
[../]
[../]
[../]
[./PhaseField]
[./Nonconserved]
[./c]
free_energy = F
kappa = kappa_op
mobility = L
[../]
[../]
[../]
[]
[Kernels]
[./solid_x]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_x
component = 0
c = c
[../]
[./solid_y]
type = PhaseFieldFractureMechanicsOffDiag
variable = disp_y
component = 1
c = c
[../]
[./off_disp]
type = AllenCahnElasticEnergyOffDiag
variable = c
displacements = 'disp_x disp_y'
mob_name = L
[../]
[]
[BCs]
[./ydisp]
type = FunctionDirichletBC
variable = disp_y
boundary = top
function = 't'
[../]
[./yfix]
type = DirichletBC
variable = disp_y
boundary = noncrack
value = 0
[../]
[./xfix]
type = DirichletBC
variable = disp_x
boundary = right
value = 0
[../]
[]
[Materials]
[./pfbulkmat]
type = GenericConstantMaterial
prop_names = 'gc_prop l visco'
prop_values = '1e-3 0.05 1e-6'
[../]
[./elasticity_tensor]
type = ComputeElasticityTensor
C_ijkl = '127.0 70.8 70.8 127.0 70.8 127.0 73.55 73.55 73.55'
fill_method = symmetric9
euler_angle_1 = 30
euler_angle_2 = 0
euler_angle_3 = 0
[../]
[./define_mobility]
type = ParsedMaterial
material_property_names = 'gc_prop visco'
f_name = L
function = '1.0/(gc_prop * visco)'
[../]
[./define_kappa]
type = ParsedMaterial
material_property_names = 'gc_prop l'
f_name = kappa_op
function = 'gc_prop * l'
[../]
[./damage_stress]
type = ComputeLinearElasticPFFractureStress
c = c
E_name = 'elastic_energy'
D_name = 'degradation'
F_name = 'local_fracture_energy'
decomposition_type = stress_spectral
use_current_history_variable = true
[../]
[./degradation]
type = DerivativeParsedMaterial
f_name = degradation
args = 'c'
function = '(1.0-c)^2*(1.0 - eta) + eta'
constant_names = 'eta'
constant_expressions = '1.0e-6'
derivative_order = 2
[../]
[./local_fracture_energy]
type = DerivativeParsedMaterial
f_name = local_fracture_energy
args = 'c'
material_property_names = 'gc_prop l'
function = 'c^2 * gc_prop / 2 / l'
derivative_order = 2
[../]
[./fracture_driving_energy]
type = DerivativeSumMaterial
args = c
sum_materials = 'elastic_energy local_fracture_energy'
derivative_order = 2
f_name = F
[../]
[]
[Postprocessors]
[./av_stress_yy]
type = ElementAverageValue
variable = stress_yy
[../]
[./av_strain_yy]
type = SideAverageValue
variable = disp_y
boundary = top
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = PJFNK
petsc_options_iname = '-pc_type -pc_factor_mat_solving_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1e-8
l_tol = 1e-4
l_max_its = 100
nl_max_its = 10
dt = 5e-5
num_steps = 2
[]
[Outputs]
exodus = true
[]
test/tests/meshgenerators/bounding_box_nodeset_generator/boundingbox_nodeset_outside.i
[Mesh]
[./gmg]
type = GeneratedMeshGenerator
dim = 2
nx = 2
ny = 2
parallel_type = replicated
[]
[./nodeset]
type = BoundingBoxNodeSetGenerator
input = gmg
new_boundary = middle_node
top_right = '1.1 1.1 0'
bottom_left = '0.51 0.51 0'
location = OUTSIDE
[]
[]
[Outputs]
exodus = true
[]
modules/tensor_mechanics/test/tests/shell/static/plate_bending.i
# Test for simply supported plate under uniform pressure
# One quarter of a 50 m x 50 m x 1m plate is modeled in this test.
# Pressure loading is applied on the top surface using nodal forces
# of magnitude -10 N on all nodes. This corresponds to a pressure (q) of
# -10.816 N/m^2.
# The FEM solution at (0,0), which is at the center of the full plate
# is -2.997084e-03 m.
# The analytical solution for displacement at center of plate obtained
# using a thin plate assumption for a square plate is
# w = 16 q a^4/(D*pi^6) \sum_{m = 1,3,5, ..}^\inf \sum_{n = 1,3,5, ..}^\inf (-1)^{(m+n-2)/2}/(mn*(m^2+n^2)^2)
# The above solution is the Navier's series solution from the "Theory of plates
# and shells" by Timoshenko and Woinowsky-Krieger (1959).
# where a = 50 m, q = -10.816 N/m^2 and D = E/(12(1-v^2))
# The analytical series solution converges to 2.998535904e-03 m
# when the first 16 terms of the series are considered (i.e., until
# m & n = 7).
# The resulting relative error between FEM and analytical solution is
# 0.048%.
[Mesh]
[./gmg]
type = GeneratedMeshGenerator
dim = 2
nx = 25
ny = 25
xmin = 0.0
xmax = 25.0
ymin = 0.0
ymax = 25.0
[../]
[./allnodes]
type = BoundingBoxNodeSetGenerator
input = gmg
bottom_left = '0.0 0.0 0.0'
top_right = '25.0 25.0 0.0'
new_boundary = 101
[../]
[]
[Variables]
[./disp_x]
order = FIRST
family = LAGRANGE
[../]
[./disp_y]
order = FIRST
family = LAGRANGE
[../]
[./disp_z]
order = FIRST
family = LAGRANGE
[../]
[./rot_x]
order = FIRST
family = LAGRANGE
[../]
[./rot_y]
order = FIRST
family = LAGRANGE
[../]
[]
[BCs]
[./symm_left_rot]
type = DirichletBC
variable = rot_y
boundary = left
value = 0.0
[../]
[./symm_bottom_rot]
type = DirichletBC
variable = rot_x
boundary = bottom
value = 0.0
[../]
[./simply_support_x]
type = DirichletBC
variable = disp_x
boundary = 'right top bottom left'
value = 0.0
[../]
[./simply_support_y]
type = DirichletBC
variable = disp_y
boundary = 'right top bottom left'
value = 0.0
[../]
[./simply_support_z]
type = DirichletBC
variable = disp_z
boundary = 'right top'
value = 0.0
[../]
[]
[NodalKernels]
[./force_y2]
type = ConstantRate
variable = disp_z
boundary = 101
rate = -10.0
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = NEWTON
line_search = 'none'
nl_rel_tol = 1e-10
nl_abs_tol = 1e-8
dt = 1.0
dtmin = 1.0
end_time = 1.0
[]
[Kernels]
[./solid_disp_x]
type = ADStressDivergenceShell
block = '0'
component = 0
variable = disp_x
through_thickness_order = SECOND
[../]
[./solid_disp_y]
type = ADStressDivergenceShell
block = '0'
component = 1
variable = disp_y
through_thickness_order = SECOND
[../]
[./solid_disp_z]
type = ADStressDivergenceShell
block = '0'
component = 2
variable = disp_z
through_thickness_order = SECOND
[../]
[./solid_rot_x]
type = ADStressDivergenceShell
block = '0'
component = 3
variable = rot_x
through_thickness_order = SECOND
[../]
[./solid_rot_y]
type = ADStressDivergenceShell
block = '0'
component = 4
variable = rot_y
through_thickness_order = SECOND
[../]
[]
[Materials]
[./elasticity]
type = ADComputeIsotropicElasticityTensorShell
youngs_modulus = 1e9
poissons_ratio = 0.3
block = 0
through_thickness_order = SECOND
[../]
[./strain]
type = ADComputeIncrementalShellStrain
block = '0'
displacements = 'disp_x disp_y disp_z'
rotations = 'rot_x rot_y'
thickness = 1.0
through_thickness_order = SECOND
[../]
[./stress]
type = ADComputeShellStress
block = 0
through_thickness_order = SECOND
[../]
[]
[Postprocessors]
[./disp_z2]
type = PointValue
point = '0.0 0.0 0.0'
variable = disp_z
[../]
[]
[Outputs]
exodus = true
[]
modules/tensor_mechanics/test/tests/capped_weak_plane/push_and_shear.i
# Dynamic problem with plasticity.
# A column of material (not subject to gravity) has the z-displacement
# of its sides fixed, but the centre of its bottom side is pushed
# upwards. This causes failure in the bottom elements.
#
# The problem utilises damping in the following way.
# The DynamicStressDivergenceTensors forms the residual
# integral grad(stress) + zeta*grad(stress-dot)
# = V/L * elasticity * (du/dx + zeta * dv/dx)
# where V is the elemental volume, and L is the length-scale,
# and u is the displacement, and v is the velocity.
# The InertialForce forms the residual
# integral density * (accel + eta * velocity)
# = V * density * (a + eta * v)
# where a is the acceleration.
# So, a damped oscillator description with both these
# kernels looks like
# 0 = V * (density * a + density * eta * v + elasticity * zeta * v / L^2 + elasticity / L^2 * u)
# Critical damping is when the coefficient of v is
# 2 * sqrt(density * elasticity / L^2)
# In the case at hand, density=1E4, elasticity~1E10 (Young is 16GPa),
# L~1 to 10 (in the horizontal or vertical direction), so this coefficient ~ 1E7 to 1E6.
# Choosing eta = 1E3 and zeta = 1E-2 gives approximate critical damping.
# If zeta is high then steady-state is achieved very quickly.
#
# In the case of plasticity, the effective stiffness of the elements
# is significantly less. Therefore, the above parameters give
# overdamping.
#
# This simulation is a nice example of the irreversable and non-uniqueness
# of simulations involving plasticity. The result depends on the damping
# parameters and the time stepping.
[Mesh]
[generated_mesh]
type = GeneratedMeshGenerator
dim = 3
nx = 10
ny = 1
nz = 5
bias_z = 1.5
xmin = -10
xmax = 10
ymin = -10
ymax = 10
zmin = -100
zmax = 0
[]
[bottomz_middle]
type = BoundingBoxNodeSetGenerator
new_boundary = bottomz_middle
bottom_left = '-1 -1500 -105'
top_right = '1 1500 -95'
input = generated_mesh
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
beta = 0.25 # Newmark time integration
gamma = 0.5 # Newmark time integration
eta = 1E3 #0.3E4 # higher values mean more damping via density
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./DynamicTensorMechanics] # zeta*K*vel + K * disp
displacements = 'disp_x disp_y disp_z'
zeta = 1E-2 # higher values mean more damping via stiffness
alpha = 0 # better nonlinear convergence than for alpha>0
[../]
[./inertia_x] # M*accel + eta*M*vel
type = InertialForce
use_displaced_mesh = false
variable = disp_x
velocity = vel_x
acceleration = accel_x
[../]
[./inertia_y]
type = InertialForce
use_displaced_mesh = false
variable = disp_y
velocity = vel_y
acceleration = accel_y
[../]
[./inertia_z]
type = InertialForce
use_displaced_mesh = false
variable = disp_z
velocity = vel_z
acceleration = accel_z
[../]
[]
[BCs]
[./no_x2]
type = DirichletBC
variable = disp_x
boundary = right
value = 0.0
[../]
[./no_x1]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./no_y1]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./no_y2]
type = DirichletBC
variable = disp_y
boundary = top
value = 0.0
[../]
[./z_fixed_sides_xmin]
type = DirichletBC
variable = disp_z
boundary = left
value = 0
[../]
[./z_fixed_sides_xmax]
type = DirichletBC
variable = disp_z
boundary = right
value = 0
[../]
[./bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = bottomz_middle
function = min(10*t,1)
[../]
[]
[AuxVariables]
[./accel_x]
[../]
[./vel_x]
[../]
[./accel_y]
[../]
[./vel_y]
[../]
[./accel_z]
[../]
[./vel_z]
[../]
[./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
[../]
[./strainp_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f_shear]
order = CONSTANT
family = MONOMIAL
[../]
[./f_tensile]
order = CONSTANT
family = MONOMIAL
[../]
[./f_compressive]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl_shear]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl_tensile]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./ls]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./accel_x] # Calculates and stores acceleration at the end of time step
type = NewmarkAccelAux
variable = accel_x
displacement = disp_x
velocity = vel_x
execute_on = timestep_end
[../]
[./vel_x] # Calculates and stores velocity at the end of the time step
type = NewmarkVelAux
variable = vel_x
acceleration = accel_x
execute_on = timestep_end
[../]
[./accel_y]
type = NewmarkAccelAux
variable = accel_y
displacement = disp_y
velocity = vel_y
execute_on = timestep_end
[../]
[./vel_y]
type = NewmarkVelAux
variable = vel_y
acceleration = accel_y
execute_on = timestep_end
[../]
[./accel_z]
type = NewmarkAccelAux
variable = accel_z
displacement = disp_z
velocity = vel_z
execute_on = timestep_end
[../]
[./vel_z]
type = NewmarkVelAux
variable = vel_z
acceleration = accel_z
execute_on = timestep_end
[../]
[./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
[../]
[./strainp_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xx
index_i = 0
index_j = 0
[../]
[./strainp_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xy
index_i = 0
index_j = 1
[../]
[./strainp_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xz
index_i = 0
index_j = 2
[../]
[./strainp_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_yy
index_i = 1
index_j = 1
[../]
[./strainp_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_yz
index_i = 1
index_j = 2
[../]
[./strainp_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_zz
index_i = 2
index_j = 2
[../]
[./straint_xx]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xx
index_i = 0
index_j = 0
[../]
[./straint_xy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xy
index_i = 0
index_j = 1
[../]
[./straint_xz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xz
index_i = 0
index_j = 2
[../]
[./straint_yy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_yy
index_i = 1
index_j = 1
[../]
[./straint_yz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_yz
index_i = 1
index_j = 2
[../]
[./straint_zz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_zz
index_i = 2
index_j = 2
[../]
[./f_shear]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f_shear
[../]
[./f_tensile]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f_tensile
[../]
[./f_compressive]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f_compressive
[../]
[./intnl_shear]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl_shear
[../]
[./intnl_tensile]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 1
variable = intnl_tensile
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./ls]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = ls
[../]
[]
[UserObjects]
[./coh]
type = TensorMechanicsHardeningConstant
value = 1E6
[../]
[./tanphi]
type = TensorMechanicsHardeningConstant
value = 0.5
[../]
[./tanpsi]
type = TensorMechanicsHardeningConstant
value = 0.166666666667
[../]
[./t_strength]
type = TensorMechanicsHardeningConstant
value = 1E80
[../]
[./c_strength]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '6.4E9 6.4E9' # young 16MPa, Poisson 0.25
[../]
[./strain]
type = ComputeIncrementalSmallStrain
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = stress
perform_finite_strain_rotations = false
[../]
[./stress]
type = CappedWeakPlaneStressUpdate
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tensile_strength = t_strength
compressive_strength = c_strength
tip_smoother = 0.5E6
smoothing_tol = 0.5E6
yield_function_tol = 1E-2
[../]
[./density]
type = GenericConstantMaterial
block = 0
prop_names = density
prop_values = 1E4
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options = '-snes_converged_reason -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
petsc_options = '-snes_converged_reason'
line_search = bt
nl_abs_tol = 1E1
nl_rel_tol = 1e-5
l_tol = 1E-10
l_max_its = 100
nl_max_its = 100
end_time = 0.5
dt = 0.1
type = Transient
[]
[Outputs]
file_base = push_and_shear
exodus = true
csv = true
[]
modules/tensor_mechanics/test/tests/capped_weak_plane/pull_and_shear.i
# Dynamic problem with plasticity.
# A column of material (not subject to gravity) has the z-displacement
# of its sides fixed, but the centre of its bottom side is pulled
# downwards. This causes failure in the bottom elements.
#
# The problem utilises damping in the following way.
# The DynamicStressDivergenceTensors forms the residual
# integral grad(stress) + zeta*grad(stress-dot)
# = V/L * elasticity * (du/dx + zeta * dv/dx)
# where V is the elemental volume, and L is the length-scale,
# and u is the displacement, and v is the velocity.
# The InertialForce forms the residual
# integral density * (accel + eta * velocity)
# = V * density * (a + eta * v)
# where a is the acceleration.
# So, a damped oscillator description with both these
# kernels looks like
# 0 = V * (density * a + density * eta * v + elasticity * zeta * v / L^2 + elasticity / L^2 * u)
# Critical damping is when the coefficient of v is
# 2 * sqrt(density * elasticity / L^2)
# In the case at hand, density=1E4, elasticity~1E10 (Young is 16GPa),
# L~1 to 10 (in the horizontal or vertical direction), so this coefficient ~ 1E7 to 1E6.
# Choosing eta = 1E3 and zeta = 1E-2 gives approximate critical damping.
# If zeta is high then steady-state is achieved very quickly.
#
# In the case of plasticity, the effective stiffness of the elements
# is significantly less. Therefore, the above parameters give
# overdamping.
#
# This simulation is a nice example of the irreversable and non-uniqueness
# of simulations involving plasticity. The result depends on the damping
# parameters and the time stepping.
[Mesh]
[generated_mesh]
type = GeneratedMeshGenerator
dim = 3
nx = 10
ny = 1
nz = 5
bias_z = 1.5
xmin = -10
xmax = 10
ymin = -10
ymax = 10
zmin = -100
zmax = 0
[]
[bottomz_middle]
type = BoundingBoxNodeSetGenerator
new_boundary = bottomz_middle
bottom_left = '-1 -1500 -105'
top_right = '1 1500 -95'
input = generated_mesh
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
beta = 0.25 # Newmark time integration
gamma = 0.5 # Newmark time integration
eta = 1E3 #0.3E4 # higher values mean more damping via density
[]
[Variables]
[./disp_x]
[../]
[./disp_y]
[../]
[./disp_z]
[../]
[]
[Kernels]
[./DynamicTensorMechanics] # zeta*K*vel + K * disp
zeta = 1E-2 # higher values mean more damping via stiffness
alpha = 0 # better nonlinear convergence than for alpha>0
[../]
[./inertia_x] # M*accel + eta*M*vel
type = InertialForce
use_displaced_mesh = false
variable = disp_x
velocity = vel_x
acceleration = accel_x
[../]
[./inertia_y]
type = InertialForce
use_displaced_mesh = false
variable = disp_y
velocity = vel_y
acceleration = accel_y
[../]
[./inertia_z]
type = InertialForce
use_displaced_mesh = false
variable = disp_z
velocity = vel_z
acceleration = accel_z
[../]
[]
[BCs]
[./no_x2]
type = DirichletBC
variable = disp_x
boundary = right
value = 0.0
[../]
[./no_x1]
type = DirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./no_y1]
type = DirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./no_y2]
type = DirichletBC
variable = disp_y
boundary = top
value = 0.0
[../]
[./z_fixed_sides_xmin]
type = DirichletBC
variable = disp_z
boundary = left
value = 0
[../]
[./z_fixed_sides_xmax]
type = DirichletBC
variable = disp_z
boundary = right
value = 0
[../]
[./bottomz]
type = FunctionDirichletBC
variable = disp_z
boundary = bottomz_middle
function = max(-10*t,-10)
[../]
[]
[AuxVariables]
[./accel_x]
[../]
[./vel_x]
[../]
[./accel_y]
[../]
[./vel_y]
[../]
[./accel_z]
[../]
[./vel_z]
[../]
[./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
[../]
[./strainp_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./strainp_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xx]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xy]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_xz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_yy]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_yz]
order = CONSTANT
family = MONOMIAL
[../]
[./straint_zz]
order = CONSTANT
family = MONOMIAL
[../]
[./f_shear]
order = CONSTANT
family = MONOMIAL
[../]
[./f_tensile]
order = CONSTANT
family = MONOMIAL
[../]
[./f_compressive]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl_shear]
order = CONSTANT
family = MONOMIAL
[../]
[./intnl_tensile]
order = CONSTANT
family = MONOMIAL
[../]
[./iter]
order = CONSTANT
family = MONOMIAL
[../]
[./ls]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./accel_x] # Calculates and stores acceleration at the end of time step
type = NewmarkAccelAux
variable = accel_x
displacement = disp_x
velocity = vel_x
execute_on = timestep_end
[../]
[./vel_x] # Calculates and stores velocity at the end of the time step
type = NewmarkVelAux
variable = vel_x
acceleration = accel_x
execute_on = timestep_end
[../]
[./accel_y]
type = NewmarkAccelAux
variable = accel_y
displacement = disp_y
velocity = vel_y
execute_on = timestep_end
[../]
[./vel_y]
type = NewmarkVelAux
variable = vel_y
acceleration = accel_y
execute_on = timestep_end
[../]
[./accel_z]
type = NewmarkAccelAux
variable = accel_z
displacement = disp_z
velocity = vel_z
execute_on = timestep_end
[../]
[./vel_z]
type = NewmarkVelAux
variable = vel_z
acceleration = accel_z
execute_on = timestep_end
[../]
[./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
[../]
[./strainp_xx]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xx
index_i = 0
index_j = 0
[../]
[./strainp_xy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xy
index_i = 0
index_j = 1
[../]
[./strainp_xz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_xz
index_i = 0
index_j = 2
[../]
[./strainp_yy]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_yy
index_i = 1
index_j = 1
[../]
[./strainp_yz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_yz
index_i = 1
index_j = 2
[../]
[./strainp_zz]
type = RankTwoAux
rank_two_tensor = plastic_strain
variable = strainp_zz
index_i = 2
index_j = 2
[../]
[./straint_xx]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xx
index_i = 0
index_j = 0
[../]
[./straint_xy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xy
index_i = 0
index_j = 1
[../]
[./straint_xz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_xz
index_i = 0
index_j = 2
[../]
[./straint_yy]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_yy
index_i = 1
index_j = 1
[../]
[./straint_yz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_yz
index_i = 1
index_j = 2
[../]
[./straint_zz]
type = RankTwoAux
rank_two_tensor = total_strain
variable = straint_zz
index_i = 2
index_j = 2
[../]
[./f_shear]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 0
variable = f_shear
[../]
[./f_tensile]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 1
variable = f_tensile
[../]
[./f_compressive]
type = MaterialStdVectorAux
property = plastic_yield_function
index = 2
variable = f_compressive
[../]
[./intnl_shear]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 0
variable = intnl_shear
[../]
[./intnl_tensile]
type = MaterialStdVectorAux
property = plastic_internal_parameter
index = 1
variable = intnl_tensile
[../]
[./iter]
type = MaterialRealAux
property = plastic_NR_iterations
variable = iter
[../]
[./ls]
type = MaterialRealAux
property = plastic_linesearch_needed
variable = ls
[../]
[]
[UserObjects]
[./coh]
type = TensorMechanicsHardeningConstant
value = 1E6
[../]
[./tanphi]
type = TensorMechanicsHardeningConstant
value = 0.5
[../]
[./tanpsi]
type = TensorMechanicsHardeningConstant
value = 0.166666666667
[../]
[./t_strength]
type = TensorMechanicsHardeningConstant
value = 0
[../]
[./c_strength]
type = TensorMechanicsHardeningConstant
value = 1E80
[../]
[]
[Materials]
[./elasticity_tensor]
type = ComputeElasticityTensor
fill_method = symmetric_isotropic
C_ijkl = '6.4E9 6.4E9' # young 16MPa, Poisson 0.25
[../]
[./strain]
type = ComputeIncrementalSmallStrain
[../]
[./admissible]
type = ComputeMultipleInelasticStress
inelastic_models = stress
perform_finite_strain_rotations = false
[../]
[./stress]
type = CappedWeakPlaneStressUpdate
cohesion = coh
tan_friction_angle = tanphi
tan_dilation_angle = tanpsi
tensile_strength = t_strength
compressive_strength = c_strength
tip_smoother = 1E6
smoothing_tol = 0.5E6
yield_function_tol = 1E-2
[../]
[./density]
type = GenericConstantMaterial
block = 0
prop_names = density
prop_values = 1E4
[../]
[]
[Preconditioning]
[./andy]
type = SMP
full = true
petsc_options = '-snes_converged_reason -snes_linesearch_monitor'
petsc_options_iname = '-pc_type -pc_asm_overlap -sub_pc_type -ksp_type -ksp_gmres_restart'
petsc_options_value = ' asm 2 lu gmres 200'
[../]
[]
[Executioner]
solve_type = 'NEWTON'
petsc_options = '-snes_converged_reason'
line_search = bt
nl_abs_tol = 1E1
nl_rel_tol = 1e-5
l_tol = 1E-10
l_max_its = 100
nl_max_its = 100
num_steps = 8
dt = 0.1
type = Transient
[]
[Outputs]
file_base = pull_and_shear
exodus = true
csv = true
[]