- boundaryThe list of boundary IDs from the mesh where this boundary condition applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundary IDs from the mesh where this boundary condition applies
- componentThe component for the pressure
C++ Type:unsigned int
Controllable:No
Description:The component for the pressure
- variableThe name of the variable that this residual object operates on
C++ Type:NonlinearVariableName
Controllable:No
Description:The name of the variable that this residual object operates on
ADPressure
Applies a pressure on a given boundary in a given direction
Description
The boundary condition, ADPressure applies a force to a mesh boundary in the magnitude specified by the user. A component of the normal vector to the mesh surface (0, 1, or 2 corresponding to the , , and vector components) is used to determine the direction in which to apply the traction. The boundary condition is always applied to the displaced mesh and uses forward mode automatic differentiation to compute an exact Jacobian contribution (this is contingent on coupling only AD enabled objects in the parameters).
The magnitude of the ADPressure boundary condition can be specified as either a constant scalar factor (use the input parameter constant), a factor from a function, a factor from a postprocessor, or any combination thereof.
Input Parameters
- alpha0alpha parameter required for HHT time integration scheme
Default:0
C++ Type:double
Controllable:No
Description:alpha parameter required for HHT time integration scheme
- constant1The magnitude to use in computing the pressure
Default:1
C++ Type:double
Controllable:No
Description:The magnitude to use in computing the pressure
- displacementsThe displacements
C++ Type:std::vector<VariableName>
Controllable:No
Description:The displacements
- functionThe function that describes the pressure
C++ Type:FunctionName
Controllable:No
Description:The function that describes the pressure
- postprocessorPostprocessor that will supply the pressure value
C++ Type:PostprocessorName
Controllable:No
Description:Postprocessor that will supply the pressure value
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
Optional 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.
- diag_save_inThe name of auxiliary variables to save this BC's diagonal jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
C++ Type:std::vector<AuxVariableName>
Controllable:No
Description:The name of auxiliary variables to save this BC's diagonal jacobian contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
- save_inThe name of auxiliary variables to save this BC's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
C++ Type:std::vector<AuxVariableName>
Controllable:No
Description:The name of auxiliary variables to save this BC's residual contributions to. Everything about that variable must match everything about this variable (the type, what blocks it's on, etc.)
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Controllable:No
Description:The seed for the master random number generator
- use_displaced_meshTrueWhether 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:True
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
- extra_matrix_tagsThe extra tags for the matrices this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the matrices this Kernel should fill
- extra_vector_tagsThe extra tags for the vectors this Kernel should fill
C++ Type:std::vector<TagName>
Controllable:No
Description:The extra tags for the vectors this Kernel should fill
- matrix_tagssystemThe tag for the matrices this Kernel should fill
Default:system
C++ Type:MultiMooseEnum
Options:nontime, system
Controllable:No
Description:The tag for the matrices this Kernel should fill
- vector_tagsnontimeThe tag for the vectors this Kernel should fill
Default:nontime
C++ Type:MultiMooseEnum
Options:nontime, time
Controllable:No
Description:The tag for the vectors this Kernel should fill
Tagging Parameters
Input Files
- (modules/combined/test/tests/ad_power_law_creep/power_law_creep_restart2.i)
- (modules/tensor_mechanics/test/tests/ad_1D_spherical/smallStrain_1DSphere.i)
- (modules/combined/test/tests/gap_heat_transfer_mortar/small-2d/open_gap_pressure_dependent.i)
- (modules/tensor_mechanics/test/tests/ad_2D_geometries/2D-RZ_test.i)
- (modules/tensor_mechanics/test/tests/rom_stress_update/ADlower_limit.i)
- (modules/tensor_mechanics/test/tests/ad_2D_geometries/2D-RZ_finiteStrain_test.i)
- (modules/tensor_mechanics/test/tests/rom_stress_update/ADverification.i)
- (modules/tensor_mechanics/test/tests/rom_stress_update/AD2drz.i)
- (modules/tensor_mechanics/test/tests/ad_smeared_cracking/cracking_plane_stress.i)
- (modules/tensor_mechanics/test/tests/ad_1D_spherical/finiteStrain_1DSphere_hollow.i)
- (modules/combined/test/tests/ad_power_law_creep/power_law_creep.i)
- (modules/combined/test/tests/gap_heat_transfer_mortar/finite-2d/varied_pressure_thermomechanical_mortar.i)
- (modules/tensor_mechanics/test/tests/ad_anisotropic_creep/ad_aniso_creep_y_3d.i)
- (modules/tensor_mechanics/test/tests/ad_isotropic_elasticity_tensor/2D-axisymmetric_rz_test.i)
- (modules/combined/test/tests/ad_power_law_creep/power_law_creep_restart1.i)
- (modules/combined/test/tests/ad_power_law_creep/power_law_creep_smallstrain.i)
- (modules/tensor_mechanics/test/tests/ad_anisotropic_creep/ad_aniso_creep_z_3d.i)
- (modules/tensor_mechanics/test/tests/ad_2D_geometries/3D-RZ_finiteStrain_test.i)
- (modules/tensor_mechanics/test/tests/rom_stress_update/AD3d.i)
(modules/combined/test/tests/ad_power_law_creep/power_law_creep_restart2.i)
# 1x1x1 unit cube with uniform pressure on top face
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
[]
[Variables]
[./temp]
order = FIRST
family = LAGRANGE
initial_condition = 1000.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
incremental = true
add_variables = true
generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
use_automatic_differentiation = true
[../]
[]
[Functions]
[./top_pull]
type = PiecewiseLinear
x = '0 1'
y = '1 1'
[../]
[]
[Kernels]
[./heat]
type = ADHeatConduction
variable = temp
[../]
[./heat_ie]
type = ADHeatConductionTimeDerivative
variable = temp
[../]
[]
[BCs]
[./u_top_pull]
type = ADPressure
variable = disp_y
component = 1
boundary = top
constant = -10.0e6
function = top_pull
[../]
[./u_bottom_fix]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./u_yz_fix]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./u_xy_fix]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0.0
[../]
[./temp_fix]
type = DirichletBC
variable = temp
boundary = 'bottom top'
value = 1000.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 2e11
poissons_ratio = 0.3
constant_on = SUBDOMAIN
[../]
[./radial_return_stress]
type = ADComputeMultipleInelasticStress
inelastic_models = 'power_law_creep'
[../]
[./power_law_creep]
type = ADPowerLawCreepStressUpdate
coefficient = 1.0e-15
n_exponent = 4
activation_energy = 3.0e5
temperature = temp
[../]
[./thermal]
type = ADHeatConductionMaterial
specific_heat = 1.0
thermal_conductivity = 100.
[../]
[./density]
type = ADDensity
density = 1.0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_ksp'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 20
nl_max_its = 20
nl_rel_tol = 1e-6
nl_abs_tol = 1e-6
l_tol = 1e-5
start_time = 0.6
end_time = 1.0
num_steps = 12
dt = 0.1
[]
[Outputs]
file_base = power_law_creep_out
exodus = true
[]
[Problem]
restart_file_base = power_law_creep_restart1_out_cp/0006
[]
(modules/tensor_mechanics/test/tests/ad_1D_spherical/smallStrain_1DSphere.i)
# This simulation models the mechanics solution for a solid sphere under
# pressure, applied on the outer surfaces, using 1D spherical symmetry
# assumpitions. The inner center of the sphere, r = 0, is pinned to prevent
# movement of the sphere.
#
# From Bower (Applied Mechanics of Solids, 2008, available online at
# solidmechanics.org/text/Chapter4_1/Chapter4_1.htm), and applying the outer
# pressure and pinned displacement boundary conditions set in this simulation,
# the radial displacement is given by:
#
# u(r) = \frac{- P * (1 - 2 * v) * r}{E}
#
# where P is the applied pressure, v is Poisson's ration, E is Young's Modulus,
# and r is the radial position.
#
# The test assumes a radius of 4, zero displacement at r = 0mm, and an applied
# outer pressure of 1MPa. Under these conditions in a solid sphere, the radial
# stress is constant and has a value of -1 MPa.
[Mesh]
type = GeneratedMesh
dim = 1
xmin = 0
xmax = 4
nx = 4
[]
[GlobalParams]
displacements = 'disp_r'
[]
[Problem]
coord_type = RSPHERICAL
[]
[Modules/TensorMechanics/Master]
[all]
strain = SMALL
add_variables = true
save_in = residual_r
use_automatic_differentiation = true
generate_output = 'spherical_hoop_stress spherical_radial_stress'
spherical_center_point = '0.0 0.0 0.0'
[]
[]
[AuxVariables]
[residual_r]
[]
[]
[Postprocessors]
[stress_rr]
type = ElementAverageValue
variable = spherical_radial_stress
[]
[stress_tt]
type = ElementAverageValue
variable = spherical_hoop_stress
[]
[residual_r]
type = NodalSum
variable = residual_r
boundary = right
[]
[]
[BCs]
[innerDisp]
type = ADDirichletBC
boundary = left
variable = disp_r
value = 0.0
[]
[outerPressure]
type = ADPressure
boundary = right
variable = disp_r
component = 0
constant = 1
[]
[]
[Materials]
[Elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
poissons_ratio = 0.345
youngs_modulus = 1e4
[]
[stress]
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = PJFNK
line_search = none
# controls for linear iterations
l_max_its = 100
l_tol = 1e-8
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-5
# time control
start_time = 0.0
dt = 0.25
dtmin = 0.0001
end_time = 0.25
[]
[Outputs]
exodus = true
[]
(modules/combined/test/tests/gap_heat_transfer_mortar/small-2d/open_gap_pressure_dependent.i)
## Units in the input file: m-Pa-s-K
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[left_rectangle]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 10
xmax = 1
ymin = 0
ymax = 0.5
boundary_name_prefix = moving_block
[]
[left_block]
type = SubdomainIDGenerator
input = left_rectangle
subdomain_id = 1
[]
[right_rectangle]
type = GeneratedMeshGenerator
dim = 2
nx = 40
ny = 10
xmin = 1.0001
xmax = 2.0001
ymin = 0
ymax = 0.5
boundary_name_prefix = fixed_block
boundary_id_offset = 4
[]
[right_block]
type = SubdomainIDGenerator
input = right_rectangle
subdomain_id = 2
[]
[two_blocks]
type = MeshCollectionGenerator
inputs = 'left_block right_block'
[]
[block_rename]
type = RenameBlockGenerator
input = two_blocks
old_block = '1 2'
new_block = 'left_block right_block'
[]
[]
[Variables]
[disp_x]
block = 'left_block right_block'
[]
[disp_y]
block = 'left_block right_block'
[]
[temperature]
initial_condition = 525.0
[]
[temperature_interface_lm]
block = 'interface_secondary_subdomain'
[]
[]
[Modules]
[TensorMechanics/Master]
[steel]
strain = SMALL
add_variables = false
use_automatic_differentiation = true
additional_generate_output = 'vonmises_stress'
additional_material_output_family = 'MONOMIAL'
additional_material_output_order = 'FIRST'
block = 'left_block'
[]
[aluminum]
strain = SMALL
add_variables = false
use_automatic_differentiation = true
additional_generate_output = 'vonmises_stress'
additional_material_output_family = 'MONOMIAL'
additional_material_output_order = 'FIRST'
block = 'right_block'
[]
[]
[]
[Kernels]
[HeatDiff_steel]
type = ADHeatConduction
variable = temperature
thermal_conductivity = steel_thermal_conductivity
block = 'left_block'
[]
[HeatDiff_aluminum]
type = ADHeatConduction
variable = temperature
thermal_conductivity = aluminum_thermal_conductivity
block = 'right_block'
[]
[]
[BCs]
[fixed_bottom_edge]
type = ADDirichletBC
variable = disp_y
value = 0
boundary = 'moving_block_bottom fixed_block_bottom'
[]
[fixed_outer_edge]
type = ADDirichletBC
variable = disp_x
value = 0
boundary = 'fixed_block_right'
[]
[pressure_left_block]
type = ADPressure
variable = disp_x
boundary = 'moving_block_left'
component = 0
function = 1*t
[]
[temperature_left]
type = ADDirichletBC
variable = temperature
value = 800
boundary = 'moving_block_left'
[]
[temperature_right]
type = ADDirichletBC
variable = temperature
value = 250
boundary = 'fixed_block_right'
[]
[]
[Contact]
[interface]
primary = moving_block_right
secondary = fixed_block_left
model = frictionless
formulation = mortar
correct_edge_dropping = true
[]
[]
[Constraints]
[thermal_contact]
type = ModularGapConductanceConstraint
variable = temperature_interface_lm
secondary_variable = temperature
primary_boundary = moving_block_right
primary_subdomain = interface_primary_subdomain
secondary_boundary = fixed_block_left
secondary_subdomain = interface_secondary_subdomain
gap_flux_models = 'closed'
use_displaced_mesh = true
[]
[]
[Materials]
[steel_elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1.93e11 #in Pa, 193 GPa, stainless steel 304
poissons_ratio = 0.29
block = 'left_block'
[]
[steel_stress]
type = ADComputeLinearElasticStress
block = 'left_block'
[]
[steel_density]
type = ADGenericConstantMaterial
prop_names = 'steel_density'
prop_values = 8e3 #in kg/m^3, stainless steel 304
block = 'left_block'
[]
[steel_thermal_properties]
type = ADGenericConstantMaterial
prop_names = 'steel_thermal_conductivity steel_heat_capacity steel_emissivity'
prop_values = '16.2 0.5 0.6' ## for stainless steel 304
block = 'left_block'
[]
[aluminum_elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 6.8e10 #in Pa, 68 GPa, aluminum
poissons_ratio = 0.36
block = 'right_block'
[]
[aluminum_stress]
type = ADComputeLinearElasticStress
block = 'right_block'
[]
[aluminum_density]
type = ADGenericConstantMaterial
prop_names = 'aluminum_density'
prop_values = 2.7e3 #in kg/m^3, stainless steel 304
block = 'right_block'
[]
[aluminum_thermal_properties]
type = ADGenericConstantMaterial
prop_names = 'aluminum_thermal_conductivity aluminum_heat_capacity aluminum_emissivity'
prop_values = '210 0.9 0.25'
block = 'right_block'
[]
[]
[UserObjects]
[closed]
type = GapFluxModelPressureDependentConduction
primary_conductivity = steel_thermal_conductivity
secondary_conductivity = aluminum_thermal_conductivity
temperature = temperature
primary_hardness = 1.0
secondary_hardness = 1.0
boundary = moving_block_right
contact_pressure = interface_normal_lm
[]
[]
[Postprocessors]
[steel_pt_interface_temperature]
type = NodalVariableValue
nodeid = 245
variable = temperature
[]
[aluminum_pt_interface_temperature]
type = NodalVariableValue
nodeid = 657
variable = temperature
[]
[interface_heat_flux_steel]
type = ADSideDiffusiveFluxAverage
variable = temperature
boundary = moving_block_right
diffusivity = steel_thermal_conductivity
[]
[interface_heat_flux_aluminum]
type = ADSideDiffusiveFluxAverage
variable = temperature
boundary = fixed_block_left
diffusivity = aluminum_thermal_conductivity
[]
[steel_element_interface_stress]
type = ElementalVariableValue
variable = vonmises_stress
elementid = 199
[]
[aluminum_element_interface_stress]
type = ElementalVariableValue
variable = vonmises_stress
elementid = 560
[]
[]
[Executioner]
type = Steady
solve_type = NEWTON
automatic_scaling = false
line_search = 'none'
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
[]
[Outputs]
csv = true
perf_graph = true
[]
(modules/tensor_mechanics/test/tests/ad_2D_geometries/2D-RZ_test.i)
# Considers the mechanics solution for a thick spherical shell that is uniformly
# pressurized on the inner and outer surfaces, using 2D axisymmetric geometry.
# This test uses the strain calculators ComputeAxisymmetricRZSmallStrain
# and ComputeAxisymmetricRZIncrementalStrain which are generated by the
# TensorMechanics MasterAction depending on the cli_args given in the tests file.
#
# From Roark (Formulas for Stress and Strain, McGraw-Hill, 1975), the radially-dependent
# circumferential stress in a uniformly pressurized thick spherical shell is given by:
#
# S(r) = [ Pi[ri^3(2r^3+ro^3)] - Po[ro^3(2r^3+ri^3)] ] / [2r^3(ro^3-ri^3)]
#
# where:
# Pi = inner pressure
# Po = outer pressure
# ri = inner radius
# ro = outer radius
#
# The tests assume an inner and outer radii of 5 and 10, with internal and external
# pressures of 100000 and 200000, respectively. The resulting compressive tangential
# stress is largest at the inner wall and, from the above equation, has a value
# of -271429.
[Mesh]
file = 2D-RZ_mesh.e
[]
[GlobalParams]
displacements = 'disp_r disp_z'
[]
[Problem]
coord_type = RZ
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
add_variables = true
generate_output = 'stress_zz'
use_automatic_differentiation = true
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1e10
poissons_ratio = 0.345
[../]
[./stress]
[../]
[]
[BCs]
# pin particle along symmetry planes
[./no_disp_r]
type = DirichletBC
variable = disp_r
boundary = xzero
value = 0.0
[../]
[./no_disp_z]
type = DirichletBC
variable = disp_z
boundary = yzero
value = 0.0
[../]
# exterior and internal pressures
[./exterior_pressure_r]
type = ADPressure
variable = disp_r
boundary = outer
component = 0
constant = 200000
[../]
[./exterior_pressure_z]
type = ADPressure
variable = disp_z
boundary = outer
component = 1
constant = 200000
[../]
[./interior_pressure_r]
type = ADPressure
variable = disp_r
boundary = inner
component = 0
constant = 100000
[../]
[./interior_pressure_z]
type = ADPressure
variable = disp_z
boundary = inner
component = 1
constant = 100000
[../]
[]
[Debug]
show_var_residual_norms = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = ' 201 hypre boomeramg 10'
line_search = 'none'
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
nl_rel_tol = 5e-9
nl_abs_tol = 1e-10
nl_max_its = 15
l_tol = 1e-3
l_max_its = 50
start_time = 0.0
end_time = 1
# num_steps = 1000
dtmax = 5e6
dtmin = 1
[./TimeStepper]
type = IterationAdaptiveDT
dt = 1
optimal_iterations = 6
iteration_window = 0
linear_iteration_ratio = 100
[../]
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
[]
[Postprocessors]
[./dt]
type = TimestepSize
[../]
[]
[Outputs]
exodus = true
[]
(modules/tensor_mechanics/test/tests/rom_stress_update/ADlower_limit.i)
temp = 800.0160634
disp = 1.0053264195e6
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[AuxVariables]
[./temperature]
initial_condition = ${temp}
[../]
[]
[Functions]
[./temp_weight]
type = ParsedFunction
vars = 'lower_limit avg'
vals = '800.0160634 temp_avg'
value = 'val := 2 * avg / lower_limit - 1;
clamped := if(val <= -1, -0.99999, if(val >= 1, 0.99999, val));
plus := exp(-2 / (1 + clamped));
minus := exp(-2 / (1 - clamped));
plus / (plus + minus)'
[../]
[./stress_weight]
type = ParsedFunction
vars = 'lower_limit avg'
vals = '2.010652839e6 vonmises_stress'
value = 'val := 2 * avg / lower_limit - 1;
clamped := if(val <= -1, -0.99999, if(val >= 1, 0.99999, val));
plus := exp(-2 / (1 + clamped));
minus := exp(-2 / (1 - clamped));
plus / (plus + minus)'
[../]
[./creep_rate_exact]
type = ParsedFunction
vars = 'lower_limit_strain temp_weight stress_weight'
vals = '3.370764e-12 temp_weight stress_weight'
value = 'lower_limit_strain * temp_weight * stress_weight'
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
use_automatic_differentiation = true
generate_output = vonmises_stress
[../]
[]
[BCs]
[./symmy]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0
[../]
[./symmx]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0
[../]
[./symmz]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0
[../]
[./pressure_x]
type = ADPressure
variable = disp_x
component = 0
boundary = right
constant = ${disp}
[../]
[./pressure_y]
type = ADPressure
variable = disp_y
component = 1
boundary = top
constant = -${disp}
[../]
[./pressure_z]
type = ADPressure
variable = disp_z
component = 2
boundary = front
constant = -${disp}
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 3.30e11
poissons_ratio = 0.3
[../]
[./stress]
type = ADComputeMultipleInelasticStress
inelastic_models = rom_stress_prediction
[../]
[./rom_stress_prediction]
type = ADSS316HLAROMANCEStressUpdateTest
temperature = temperature
initial_cell_dislocation_density = 6.0e12
initial_wall_dislocation_density = 4.4e11
outputs = all
apply_strain = false
[../]
[]
[Executioner]
type = Transient
solve_type = 'NEWTON'
nl_abs_tol = 1e-12
automatic_scaling = true
compute_scaling_once = false
num_steps = 1
dt = 1e5
[]
[Postprocessors]
[./creep_rate_exact]
type = FunctionValuePostprocessor
function = creep_rate_exact
[../]
[./creep_rate_avg]
type = ElementAverageValue
variable = creep_rate
[../]
[./creep_rate_diff]
type = DifferencePostprocessor
value1 = creep_rate_exact
value2 = creep_rate_avg
[../]
[./temp_avg]
type = ElementAverageValue
variable = temperature
[../]
[./cell_dislocations]
type = ElementAverageValue
variable = cell_dislocations
[../]
[./wall_disloactions]
type = ElementAverageValue
variable = wall_dislocations
[../]
[./vonmises_stress]
type = ElementAverageValue
variable = vonmises_stress
[../]
[]
[Outputs]
csv = true
[]
(modules/tensor_mechanics/test/tests/ad_2D_geometries/2D-RZ_finiteStrain_test.i)
# Considers the mechanics solution for a thick spherical shell that is uniformly
# pressurized on the inner and outer surfaces, using 2D axisymmetric geometry.
# This test uses the strain calculator ComputeAxisymmetricRZFiniteStrain,
# which is generated through the use of the TensorMechanics MasterAction.
#
# From Roark (Formulas for Stress and Strain, McGraw-Hill, 1975), the radially-dependent
# circumferential stress in a uniformly pressurized thick spherical shell is given by:
#
# S(r) = [ Pi[ri^3(2r^3+ro^3)] - Po[ro^3(2r^3+ri^3)] ] / [2r^3(ro^3-ri^3)]
#
# where:
# Pi = inner pressure
# Po = outer pressure
# ri = inner radius
# ro = outer radius
#
# The tests assume an inner and outer radii of 5 and 10, with internal and external
# pressures of 100000 and 200000 at t = 1.0, respectively. The resulting compressive
# tangential stress is largest at the inner wall and, from the above equation, has a
# value of -271429.
#
# RESULTS are below. Since stresses are average element values, values for the
# edge element and one-element-in are used to extrapolate the stress to the
# inner surface. The vesrion of the tests that are checked use the coarsest meshes.
#
# Mesh Radial elem S(edge elem) S(one elem in) S(extrap to surf)
# 1D-SPH
# 2D-RZ 12 (x10) -265004 -254665 -270174
# 3D 12 (6x6) -261880 -252811 -266415
#
# 1D-SPH
# 2D-RZ 48 (x10) -269853 -266710 -271425
# 3D 48 (10x10) -268522 -265653 -269957
#
# The numerical solution converges to the analytical solution as the mesh is
# refined.
[Mesh]
file = 2D-RZ_mesh.e
[]
[GlobalParams]
displacements = 'disp_r disp_z'
[]
[Problem]
coord_type = RZ
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
block = 1
use_automatic_differentiation = true
[../]
[]
[AuxVariables]
[./stress_theta]
order = CONSTANT
family = MONOMIAL
[../]
[./strain_theta]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_theta]
type = ADRankTwoAux
rank_two_tensor = stress
index_i = 2
index_j = 2
variable = stress_theta
execute_on = timestep_end
[../]
[./strain_theta]
type = ADRankTwoAux
rank_two_tensor = total_strain
index_i = 2
index_j = 2
variable = strain_theta
execute_on = timestep_end
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1e10
poissons_ratio = 0.345
block = 1
[../]
[./_elastic_strain]
type = ADComputeFiniteStrainElasticStress
block = 1
[../]
[]
[BCs]
# pin particle along symmetry planes
[./no_disp_r]
type = ADDirichletBC
variable = disp_r
boundary = xzero
value = 0.0
[../]
[./no_disp_z]
type = ADDirichletBC
variable = disp_z
boundary = yzero
value = 0.0
[../]
# exterior and internal pressures
[./exterior_pressure_r]
type = ADPressure
variable = disp_r
boundary = outer
component = 0
function = '200000*t'
[../]
[./exterior_pressure_z]
type = ADPressure
variable = disp_z
boundary = outer
component = 1
function = '200000*t'
[../]
[./interior_pressure_r]
type = ADPressure
variable = disp_r
boundary = inner
component = 0
function = '100000*t'
[../]
[./interior_pressure_z]
type = ADPressure
variable = disp_z
boundary = inner
component = 1
function = '100000*t'
[../]
[]
[Debug]
show_var_residual_norms = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = ' 201 hypre boomeramg 10'
line_search = 'none'
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
nl_rel_tol = 5e-9
nl_abs_tol = 1e-10
nl_max_its = 15
l_tol = 1e-3
l_max_its = 50
start_time = 0.0
end_time = 0.2
dt = 0.1
[]
[Postprocessors]
[./strainTheta]
type = ElementAverageValue
variable = strain_theta
[../]
[./stressTheta]
type = ElementAverageValue
variable = stress_theta
[../]
[./stressTheta_pt]
type = PointValue
point = '5.0 0.0 0.0'
#bottom inside edge for comparison to theory; use csv = true
variable = stress_theta
[../]
[]
[Outputs]
exodus = true
[]
(modules/tensor_mechanics/test/tests/rom_stress_update/ADverification.i)
[Mesh]
type = GeneratedMesh
dim = 3
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[AuxVariables]
[./temperature]
[../]
[]
[AuxKernels]
[./temp_aux]
type = FunctionAux
variable = temperature
function = temp_fcn
execute_on = 'initial timestep_begin'
[../]
[]
[Functions]
[./rhom_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 1
format = columns
xy_in_file_only = false
direction = right
[../]
[./rhoi_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 2
format = columns
xy_in_file_only = false
direction = right
[../]
[./vmJ2_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 3
format = columns
xy_in_file_only = false
direction = right
[../]
[./evm_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 4
format = columns
xy_in_file_only = false
direction = right
[../]
[./temp_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 5
format = columns
xy_in_file_only = false
direction = right
[../]
[./rhom_soln_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 7
format = columns
xy_in_file_only = false
direction = right
[../]
[./rhoi_soln_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 8
format = columns
xy_in_file_only = false
direction = right
[../]
[./creep_rate_soln_fcn]
type = PiecewiseConstant
data_file = ss316_verification_data.csv
x_index_in_file = 0
y_index_in_file = 10
format = columns
xy_in_file_only = false
direction = right
[../]
[./rhom_diff_fcn]
type = ParsedFunction
vars = 'rhom_soln rhom'
vals = 'rhom_soln rhom'
value = 'abs(rhom_soln - rhom) / rhom_soln'
[../]
[./rhoi_diff_fcn]
type = ParsedFunction
vars = 'rhoi_soln rhoi'
vals = 'rhoi_soln rhoi'
value = 'abs(rhoi_soln - rhoi) / rhoi_soln'
[../]
[./creep_rate_diff_fcn]
type = ParsedFunction
vars = 'creep_rate_soln creep_rate'
vals = 'creep_rate_soln creep_rate'
value = 'abs(creep_rate_soln - creep_rate) / creep_rate_soln'
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
generate_output = 'vonmises_stress'
use_automatic_differentiation = true
[../]
[]
[BCs]
[./symmx]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0
[../]
[./symmy]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0
[../]
[./symmz]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0
[../]
[./pressure_x]
type = ADPressure
variable = disp_x
component = 0
boundary = right
function = vmJ2_fcn
constant = 0.5e6
[../]
[./pressure_y]
type = ADPressure
variable = disp_y
component = 1
boundary = top
function = vmJ2_fcn
constant = -0.5e6
[../]
[./pressure_z]
type = ADPressure
variable = disp_z
component = 2
boundary = front
function = vmJ2_fcn
constant = -0.5e6
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1e11
poissons_ratio = 0.3
[../]
[./stress]
type = ADComputeMultipleInelasticStress
inelastic_models = rom_stress_prediction
[../]
[./rom_stress_prediction]
type = ADSS316HLAROMANCEStressUpdateTest
temperature = temperature
effective_inelastic_strain_name = effective_creep_strain
internal_solve_full_iteration_history = true
outputs = all
wall_dislocation_density_forcing_function = rhoi_fcn
cell_dislocation_density_forcing_function = rhom_fcn
old_creep_strain_forcing_function = evm_fcn
[../]
[]
[Executioner]
type = Transient
solve_type = 'NEWTON'
petsc_options = '-snes_ksp_ew -snes_converged_reason -ksp_converged_reason'# -ksp_error_if_not_converged -snes_error_if_not_converged'
petsc_options_iname = '-pc_type'
petsc_options_value = 'lu'
line_search = 'none'
automatic_scaling = true
compute_scaling_once = false
nl_abs_tol = 1e-10
dt = 1e-3
end_time = 1e-2
[]
[Postprocessors]
[./effective_strain_avg]
type = ElementAverageValue
variable = effective_creep_strain
outputs = console
[../]
[./temperature]
type = ElementAverageValue
variable = temperature
outputs = console
[../]
[./rhom]
type = ElementAverageValue
variable = cell_dislocations
[../]
[./rhoi]
type = ElementAverageValue
variable = wall_dislocations
[../]
[./vonmises_stress]
type = ElementAverageValue
variable = vonmises_stress
outputs = console
[../]
[./creep_rate]
type = ElementAverageValue
variable = creep_rate
[../]
[./rhom_in]
type = FunctionValuePostprocessor
function = rhom_fcn
execute_on = 'TIMESTEP_END initial'
outputs = console
[../]
[./rhoi_in]
type = FunctionValuePostprocessor
function = rhoi_fcn
execute_on = 'TIMESTEP_END initial'
outputs = console
[../]
[./vmJ2_in]
type = FunctionValuePostprocessor
function = vmJ2_fcn
execute_on = 'TIMESTEP_END initial'
outputs = console
[../]
[./rhom_soln]
type = FunctionValuePostprocessor
function = rhom_soln_fcn
outputs = console
[../]
[./rhoi_soln]
type = FunctionValuePostprocessor
function = rhoi_soln_fcn
outputs = console
[../]
[./creep_rate_soln]
type = FunctionValuePostprocessor
function = creep_rate_soln_fcn
outputs = console
[../]
[./rhom_diff]
type = FunctionValuePostprocessor
function = rhom_diff_fcn
outputs = console
[../]
[./rhoi_diff]
type = FunctionValuePostprocessor
function = rhoi_diff_fcn
outputs = console
[../]
[./creep_rate_diff]
type = FunctionValuePostprocessor
function = creep_rate_diff_fcn
outputs = console
[../]
[./rhom_max_diff]
type = TimeExtremeValue
postprocessor = rhom_diff
outputs = console
[../]
[./rhoi_max_diff]
type = TimeExtremeValue
postprocessor = rhoi_diff
outputs = console
[../]
[./creep_rate_max_diff]
type = TimeExtremeValue
postprocessor = creep_rate_diff
outputs = console
[../]
[]
[Outputs]
csv = true
file_base = 'verification_1e-3_out'
[]
(modules/tensor_mechanics/test/tests/rom_stress_update/AD2drz.i)
[Mesh]
type = GeneratedMesh
dim = 2
nx = 2
ny = 2
[]
[Problem]
coord_type = RZ
[]
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[AuxVariables]
[./temperature]
initial_condition = 900.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
use_automatic_differentiation = true
generate_output = vonmises_stress
[../]
[]
[BCs]
[./symmy]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0
[../]
[./symmx]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0
[../]
[./pressure_x]
type = ADPressure
variable = disp_x
component = 0
boundary = right
function = t
constant = 3.1675e5
[../]
[./pressure_y]
type = ADPressure
variable = disp_y
component = 1
boundary = top
function = t
constant = 6.336e5
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 3.30e11
poissons_ratio = 0.3
[../]
[./stress]
type = ADComputeMultipleInelasticStress
inelastic_models = rom_stress_prediction
[../]
[./rom_stress_prediction]
type = ADSS316HLAROMANCEStressUpdateTest
temperature = temperature
initial_cell_dislocation_density = 6.0e12
initial_wall_dislocation_density = 4.4e11
outputs = all
[../]
[]
[Executioner]
type = Transient
solve_type = 'NEWTON'
nl_abs_tol = 1e-12
automatic_scaling = true
compute_scaling_once = false
num_steps = 5
dt = 2
[]
[Postprocessors]
[./effective_strain_avg]
type = ElementAverageValue
variable = effective_creep_strain
[../]
[./temperature]
type = ElementAverageValue
variable = temperature
[../]
[./cell_dislocations]
type = ElementAverageValue
variable = cell_dislocations
[../]
[./wall_disloactions]
type = ElementAverageValue
variable = wall_dislocations
[../]
[./vonmises_stress]
type = ElementAverageValue
variable = vonmises_stress
[../]
[]
[Outputs]
csv = true
[]
(modules/tensor_mechanics/test/tests/ad_smeared_cracking/cracking_plane_stress.i)
################################################################################
#
# 1x1x1 cube, single element
# simulate plane stress
# pull in +y direction on right surface to produce shear strain
#
#
#
# ____________
# /| /|
# / | 5 / | -X Left 1
# /__________ / | +X Right 4
# | | 3 | | +Y Top 5
# | 1 | | 4 | -Y Bottom 2
# | |_6_____|___| y +Z Front 6
# | / | / ^ -Z Back 3
# | / 2 | / |
# |/__________|/ |
# ----> x
# /
# /
# z
#
#
#
#################################################################################
[Mesh]
file = cube.e
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Functions]
[./displ]
type = PiecewiseLinear
x = '0 0.1 0.2 0.3 0.4'
y = '0 0.0026 0 -0.0026 0'
[../]
[./pressure]
type = PiecewiseLinear
x = '0 0.1 0.2 0.3 0.4'
y = '0 0 0 0 0'
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz stress_zx'
use_automatic_differentiation = true
[../]
[]
[BCs]
[./pull_y]
type = ADFunctionDirichletBC
variable = disp_y
boundary = 4
function = displ
[../]
[./pin_x]
type = ADDirichletBC
variable = disp_x
boundary = '1 4'
value = 0.0
[../]
[./pin_y]
type = ADDirichletBC
variable = disp_y
boundary = 1
value = 0.0
[../]
[./back]
type = ADDirichletBC
variable = disp_z
boundary = '3'
value = 0.0
[../]
[./front]
type = ADPressure
variable = disp_z
component = 2
boundary = 6
function = pressure
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 200.0e3
poissons_ratio = .3
[../]
[./elastic_stress]
type = ADComputeSmearedCrackingStress
cracking_stress = 120
shear_retention_factor = 0.1
softening_models = exponential_softening
[../]
[./exponential_softening]
type = ADExponentialSoftening
residual_stress = 0.1
beta = 0.1
[../]
[]
[Executioner]
type = Transient
solve_type = Newton
petsc_options_iname = '-ksp_gmres_restart -pc_type -sub_pc_type'
petsc_options_value = '101 asm lu'
line_search = 'none'
l_max_its = 100
nl_max_its = 100
nl_rel_tol = 1e-12
nl_abs_tol = 1e-8
l_tol = 1e-5
start_time = 0.0
end_time = 0.4
dt = 0.04
[]
[Outputs]
exodus = true
[]
(modules/tensor_mechanics/test/tests/ad_1D_spherical/finiteStrain_1DSphere_hollow.i)
# This simulation models the mechanics solution for a hollow sphere under
# pressure, applied on the outer surfaces, using 1D spherical symmetry
# assumpitions. The inner radius of the sphere, r = 4mm, is pinned to prevent
# rigid body movement of the sphere.
#
# From Bower (Applied Mechanics of Solids, 2008, available online at
# solidmechanics.org/text/Chapter4_1/Chapter4_1.htm), and applying the outer
# pressure and pinned displacement boundary conditions set in this simulation,
# the radial displacement is given by:
#
# u(r) = \frac{P(1 + v)(1 - 2v)b^3}{E(b^3(1 + v) + 2a^3(1-2v))} * (\frac{a^3}{r^2} - r)
#
# where P is the applied pressure, b is the outer radius, a is the inner radius,
# v is Poisson's ration, E is Young's Modulus, and r is the radial position.
#
# The radial stress is given by:
#
# S(r) = \frac{Pb^3}{b^3(1 + v) + 2a^3(1 - 2v)} * (\frac{2a^3}{r^3}(2v - 1) - (1 + v))
#
# The test assumes an inner radius of 4mm, and outer radius of 9 mm,
# zero displacement at r = 4mm, and an applied outer pressure of 2MPa.
# The radial stress is largest in the inner most element and, at an assumed
# mid element coordinate of 4.5mm, is equal to -2.545MPa.
[Mesh]
type = GeneratedMesh
dim = 1
xmin = 4
xmax = 9
nx = 5
[]
[GlobalParams]
displacements = 'disp_r'
[]
[Problem]
coord_type = RSPHERICAL
[]
[Modules/TensorMechanics/Master]
[all]
strain = FINITE
add_variables = true
use_automatic_differentiation = true
spherical_center_point = '4.0 0.0 0.0'
generate_output = 'spherical_radial_stress'
[]
[]
[Postprocessors]
[stress_rr]
type = ElementAverageValue
variable = spherical_radial_stress
[]
[]
[BCs]
[innerDisp]
type = ADDirichletBC
boundary = left
variable = disp_r
value = 0.0
[]
[outerPressure]
type = ADPressure
boundary = right
variable = disp_r
component = 0
constant = 2
[]
[]
[Materials]
[Elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
poissons_ratio = 0.345
youngs_modulus = 1e4
[]
[stress]
type = ADComputeFiniteStrainElasticStress
[]
[]
[Preconditioning]
[smp]
type = SMP
full = true
[]
[]
[Executioner]
type = Transient
solve_type = PJFNK
line_search = none
# controls for linear iterations
l_max_its = 100
l_tol = 1e-8
# controls for nonlinear iterations
nl_max_its = 15
nl_rel_tol = 1e-10
nl_abs_tol = 1e-5
# time control
start_time = 0.0
dt = 0.25
dtmin = 0.0001
end_time = 0.25
[]
[Outputs]
exodus = true
[]
(modules/combined/test/tests/ad_power_law_creep/power_law_creep.i)
# 1x1x1 unit cube with uniform pressure on top face
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
[]
[Variables]
[./temp]
initial_condition = 1000.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
incremental = true
add_variables = true
generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
use_automatic_differentiation = true
[../]
[]
[Kernels]
[./heat]
type = ADHeatConduction
variable = temp
[../]
[./heat_ie]
type = ADHeatConductionTimeDerivative
variable = temp
[../]
[]
[BCs]
[./u_top_pull]
type = ADPressure
variable = disp_y
component = 1
boundary = top
constant = -10.0e6
[../]
[./u_bottom_fix]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./u_yz_fix]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./u_xy_fix]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0.0
[../]
[./temp_fix]
type = DirichletBC
variable = temp
boundary = 'bottom top'
value = 1000.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 2e11
poissons_ratio = 0.3
constant_on = SUBDOMAIN
[../]
[./radial_return_stress]
type = ADComputeMultipleInelasticStress
inelastic_models = 'power_law_creep'
[../]
[./power_law_creep]
type = ADPowerLawCreepStressUpdate
coefficient = 1.0e-15
n_exponent = 4
activation_energy = 3.0e5
temperature = temp
[../]
[./thermal]
type = ADHeatConductionMaterial
specific_heat = 1.0
thermal_conductivity = 100.
[../]
[./density]
type = ADDensity
density = 1.0
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_ksp'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 20
nl_max_its = 20
nl_rel_tol = 1e-6
nl_abs_tol = 1e-6
l_tol = 1e-5
start_time = 0.0
end_time = 1.0
num_steps = 10
dt = 0.1
[]
[Outputs]
exodus = true
[]
(modules/combined/test/tests/gap_heat_transfer_mortar/finite-2d/varied_pressure_thermomechanical_mortar.i)
## Units in the input file: m-Pa-s-K
[GlobalParams]
displacements = 'disp_x disp_y'
[]
[Mesh]
[left_rectangle]
type = GeneratedMeshGenerator
dim = 2
nx = 20
ny = 10
xmax = 0.25
ymin = 0
ymax = 0.5
boundary_name_prefix = moving_block
[]
[left_block]
type = SubdomainIDGenerator
input = left_rectangle
subdomain_id = 1
[]
[right_rectangle]
type = GeneratedMeshGenerator
dim = 2
nx = 20
ny = 10
xmin = 0.25
xmax = 0.5
ymin = 0
ymax = 0.5
boundary_name_prefix = fixed_block
boundary_id_offset = 4
[]
[right_block]
type = SubdomainIDGenerator
input = right_rectangle
subdomain_id = 2
[]
[two_blocks]
type = MeshCollectionGenerator
inputs = 'left_block right_block'
[]
[block_rename]
type = RenameBlockGenerator
input = two_blocks
old_block = '1 2'
new_block = 'left_block right_block'
[]
patch_update_strategy = iteration
[]
[Variables]
[disp_x]
block = 'left_block right_block'
[]
[disp_y]
block = 'left_block right_block'
[]
[temperature]
initial_condition = 300.0
[]
[temperature_interface_lm]
block = 'interface_secondary_subdomain'
[]
[]
[Modules]
[TensorMechanics/Master]
[steel]
strain = FINITE
add_variables = false
use_automatic_differentiation = true
generate_output = 'strain_xx strain_xy strain_yy stress_xx stress_xy stress_yy'
additional_generate_output = 'vonmises_stress'
additional_material_output_family = 'MONOMIAL'
additional_material_output_order = 'FIRST'
block = 'left_block'
[]
[aluminum]
strain = FINITE
add_variables = false
use_automatic_differentiation = true
generate_output = 'strain_xx strain_xy strain_yy stress_xx stress_xy stress_yy'
additional_generate_output = 'vonmises_stress'
additional_material_output_family = 'MONOMIAL'
additional_material_output_order = 'FIRST'
block = 'right_block'
[]
[]
[]
[Kernels]
[HeatDiff_steel]
type = ADHeatConduction
variable = temperature
thermal_conductivity = steel_thermal_conductivity
block = 'left_block'
[]
[HeatTdot_steel]
type = ADHeatConductionTimeDerivative
variable = temperature
specific_heat = steel_heat_capacity
density_name = steel_density
block = 'left_block'
[]
[HeatDiff_aluminum]
type = ADHeatConduction
variable = temperature
thermal_conductivity = aluminum_thermal_conductivity
block = 'right_block'
[]
[HeatTdot_aluminum]
type = ADHeatConductionTimeDerivative
variable = temperature
specific_heat = aluminum_heat_capacity
density_name = aluminum_density
block = 'right_block'
[]
[]
[BCs]
[fixed_bottom_edge]
type = ADDirichletBC
variable = disp_y
value = 0
boundary = 'moving_block_bottom fixed_block_bottom'
[]
[fixed_outer_edge]
type = ADDirichletBC
variable = disp_x
value = 0
boundary = 'fixed_block_right'
[]
[pressure_left_block]
type = ADPressure
variable = disp_x
component = 0
boundary = 'moving_block_left'
function = '1e4*t*y'
[]
[temperature_left]
type = ADDirichletBC
variable = temperature
value = 300
boundary = 'moving_block_left'
[]
[temperature_right]
type = ADDirichletBC
variable = temperature
value = 800
boundary = 'fixed_block_right'
[]
[]
[Contact]
[interface]
primary = moving_block_right
secondary = fixed_block_left
model = frictionless
formulation = mortar
correct_edge_dropping = true
[]
[]
[Constraints]
[thermal_contact]
type = ModularGapConductanceConstraint
variable = temperature_interface_lm
secondary_variable = temperature
primary_boundary = moving_block_right
primary_subdomain = interface_primary_subdomain
secondary_boundary = fixed_block_left
secondary_subdomain = interface_secondary_subdomain
gap_flux_models = 'closed'
use_displaced_mesh = true
[]
[]
[Materials]
[steel_elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1.93e11 #in Pa, 193 GPa, stainless steel 304
poissons_ratio = 0.29
block = 'left_block'
[]
[steel_stress]
type = ADComputeFiniteStrainElasticStress
block = 'left_block'
[]
[steel_thermal_properties]
type = ADGenericConstantMaterial
prop_names = 'steel_density steel_thermal_conductivity steel_heat_capacity steel_hardness'
prop_values = ' 8e3 16.2 0.5 129' ## for stainless steel 304
block = 'left_block'
[]
[aluminum_elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 6.8e10 #in Pa, 68 GPa, aluminum
poissons_ratio = 0.36
block = 'right_block'
[]
[aluminum_stress]
type = ADComputeFiniteStrainElasticStress
block = 'right_block'
[]
[aluminum_thermal_properties]
type = ADGenericConstantMaterial
prop_names = 'aluminum_density aluminum_thermal_conductivity aluminum_heat_capacity aluminum_hardness'
prop_values = ' 2.7e3 210 0.9 15' #for 99% pure Al
block = 'right_block'
[]
[]
[UserObjects]
[closed]
type = GapFluxModelPressureDependentConduction
primary_conductivity = steel_thermal_conductivity
secondary_conductivity = aluminum_thermal_conductivity
temperature = temperature
contact_pressure = interface_normal_lm
primary_hardness = steel_hardness
secondary_hardness = aluminum_hardness
boundary = moving_block_right
[]
[]
[Postprocessors]
[contact_pressure_max]
type = NodalExtremeValue
variable = interface_normal_lm
block = interface_secondary_subdomain
value_type = max
[]
[contact_pressure_average]
type = AverageNodalVariableValue
variable = interface_normal_lm
block = interface_secondary_subdomain
[]
[contact_pressure_min]
type = NodalExtremeValue
variable = interface_normal_lm
block = interface_secondary_subdomain
value_type = min
[]
[interface_temperature_max]
type = NodalExtremeValue
variable = temperature
block = interface_secondary_subdomain
value_type = max
[]
[interface_temperature_average]
type = AverageNodalVariableValue
variable = temperature
block = interface_secondary_subdomain
[]
[interface_temperature_min]
type = NodalExtremeValue
variable = temperature
block = interface_secondary_subdomain
value_type = min
[]
[]
[Executioner]
type = Transient
solve_type = NEWTON
automatic_scaling = false
line_search = 'none'
# mortar contact solver options
petsc_options = '-snes_converged_reason -pc_svd_monitor'
petsc_options_iname = '-pc_type -pc_factor_mat_solver_type'
petsc_options_value = ' lu superlu_dist'
snesmf_reuse_base = false
nl_rel_tol = 1e-7
nl_max_its = 20
l_max_its = 50
dt = 0.125
end_time = 1
[]
[Outputs]
csv = true
perf_graph = true
[]
(modules/tensor_mechanics/test/tests/ad_anisotropic_creep/ad_aniso_creep_y_3d.i)
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 3
nx = 2
ny = 10
nz = 2
xmin = 0.0
ymin = 0.0
zmin = 0.0
xmax = 1.0
ymax = 10.0
zmax = 1.0
[]
[corner_node]
type = ExtraNodesetGenerator
new_boundary = '100'
nodes = '4 10'
input = gen
[]
[corner_node_2]
type = ExtraNodesetGenerator
new_boundary = '101'
nodes = '1 67'
input = corner_node
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
volumetric_locking_correction = true
[]
[AuxVariables]
[hydrostatic_stress]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_xx]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_xy]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_yy]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_zz]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[hydrostatic_stress]
type = ADRankTwoScalarAux
variable = hydrostatic_stress
rank_two_tensor = stress
scalar_type = Hydrostatic
[]
[creep_strain_xx]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_xx
index_i = 0
index_j = 0
[]
[creep_strain_xy]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_xy
index_i = 0
index_j = 1
[]
[creep_strain_yy]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_yy
index_i = 1
index_j = 1
[]
[creep_strain_zz]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_yy
index_i = 1
index_j = 1
[]
[sigma_yy]
type = ADRankTwoAux
rank_two_tensor = stress
variable = stress_yy
index_i = 1
index_j = 1
[]
[]
[Functions]
[pull]
type = PiecewiseLinear
x = '0 1.0e-11 1.0'
y = '0 -4e1 -4e1'
[]
[]
[Modules/TensorMechanics/Master]
[all]
strain = FINITE
generate_output = 'elastic_strain_yy stress_yy'
use_automatic_differentiation = true
add_variables = true
[]
[]
[Materials]
[elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 700
poissons_ratio = 0.0
[]
[elastic_strain]
type = ADComputeMultipleInelasticStress
inelastic_models = "trial_creep_two"
max_iterations = 50
absolute_tolerance = 1e-16
[]
[hill_tensor]
type = HillConstants
# F G H L M N
hill_constants = "0.5 0.25 0.3866 1.6413 1.6413 1.2731"
[]
[trial_creep_two]
type = ADHillCreepStressUpdate
coefficient = 1e-16
n_exponent = 9
m_exponent = 0
activation_energy = 0
max_inelastic_increment = 0.00003
absolute_tolerance = 1e-20
relative_tolerance = 1e-20
# Force it to not use integration error
max_integration_error = 0.000001
[]
[]
[BCs]
[no_disp_x]
type = ADDirichletBC
variable = disp_x
boundary = 101
value = 0.0
[]
[no_disp_y]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[]
[no_disp_z]
type = ADDirichletBC
variable = disp_z
boundary = 100
value = 0.0
[]
[pressure]
type = ADPressure
boundary = top
function = pull
variable = disp_y
component = 1
[]
[]
[Executioner]
type = Transient
solve_type = NEWTON
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1.0e-13
nl_abs_tol = 1.0e-13
l_max_its = 90
num_steps = 10
dt = 1.0e-4
start_time = 0
automatic_scaling = true
[]
[Postprocessors]
[matl_ts_min]
type = MaterialTimeStepPostprocessor
[]
[max_disp_x]
type = ElementExtremeValue
variable = disp_x
[]
[max_disp_y]
type = ElementExtremeValue
variable = disp_y
[]
[max_hydro]
type = ElementAverageValue
variable = hydrostatic_stress
[]
[dt]
type = TimestepSize
[]
[num_lin]
type = NumLinearIterations
outputs = console
[]
[num_nonlin]
type = NumNonlinearIterations
outputs = console
[]
[creep_strain_yy]
type = ElementalVariableValue
variable = creep_strain_yy
execute_on = 'TIMESTEP_END'
elementid = 39
[]
[elastic_strain_yy]
type = ElementalVariableValue
variable = elastic_strain_yy
execute_on = 'TIMESTEP_END'
elementid = 39
[]
[sigma_yy]
type = ElementalVariableValue
variable = stress_yy
execute_on = 'TIMESTEP_END'
elementid = 39
[]
[]
[Outputs]
csv = true
exodus = true
perf_graph = true
[]
(modules/tensor_mechanics/test/tests/ad_isotropic_elasticity_tensor/2D-axisymmetric_rz_test.i)
[Mesh]
type = GeneratedMesh
dim = 2
elem_type = QUAD8
[]
[GlobalParams]
displacements = 'disp_r disp_z'
[]
[Problem]
coord_type = RZ
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
add_variables = true
use_automatic_differentiation = true
[../]
[]
[AuxVariables]
[./stress_theta]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_theta]
type = ADRankTwoAux
rank_two_tensor = stress
index_i = 2
index_j = 2
variable = stress_theta
execute_on = timestep_end
[../]
[]
[Materials]
[./elasticity_tensor]
#Material constants selected to match isotropic lambda and shear modulus case
type = ADComputeElasticityTensor
C_ijkl = '1022726 113636 113636 1022726 454545'
fill_method = axisymmetric_rz
[../]
[./elastic_stress]
type = ADComputeLinearElasticStress
[../]
[]
[BCs]
# pin particle along symmetry planes
[./no_disp_r]
type = DirichletBC
variable = disp_r
boundary = left
value = 0.0
[../]
[./no_disp_z]
type = DirichletBC
variable = disp_z
boundary = bottom
value = 0.0
[../]
# exterior and internal pressures
[./exterior_pressure_r]
type = ADPressure
variable = disp_r
boundary = right
component = 0
constant = 200000
[../]
[]
[Debug]
show_var_residual_norms = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = ' 201 hypre boomeramg 10'
line_search = 'none'
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
nl_rel_tol = 5e-9
nl_abs_tol = 1e-10
nl_max_its = 15
l_tol = 1e-3
l_max_its = 50
start_time = 0.0
end_time = 1
num_steps = 1000
dtmax = 5e6
dtmin = 1
[./TimeStepper]
type = IterationAdaptiveDT
dt = 1
optimal_iterations = 6
iteration_window = 0
linear_iteration_ratio = 100
[../]
[./Predictor]
type = SimplePredictor
scale = 1.0
[../]
[]
[Postprocessors]
[./dt]
type = TimestepSize
[../]
[]
[Outputs]
file_base = 2D-axisymmetric_rz_test_out
exodus = true
[]
(modules/combined/test/tests/ad_power_law_creep/power_law_creep_restart1.i)
# 1x1x1 unit cube with uniform pressure on top face
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
[]
[Variables]
[./temp]
order = FIRST
family = LAGRANGE
initial_condition = 1000.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
incremental = true
add_variables = true
generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
use_automatic_differentiation = true
[../]
[]
[Functions]
[./top_pull]
type = PiecewiseLinear
x = '0 1'
y = '1 1'
[../]
[]
[Kernels]
[./heat]
type = ADHeatConduction
variable = temp
[../]
[./heat_ie]
type = ADHeatConductionTimeDerivative
variable = temp
[../]
[]
[BCs]
[./u_top_pull]
type = ADPressure
variable = disp_y
component = 1
boundary = top
constant = -10.0e6
function = top_pull
[../]
[./u_bottom_fix]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./u_yz_fix]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./u_xy_fix]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0.0
[../]
[./temp_fix]
type = DirichletBC
variable = temp
boundary = 'bottom top'
value = 1000.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 2e11
poissons_ratio = 0.3
constant_on = SUBDOMAIN
[../]
[./radial_return_stress]
type = ADComputeMultipleInelasticStress
inelastic_models = 'power_law_creep'
[../]
[./power_law_creep]
type = ADPowerLawCreepStressUpdate
coefficient = 1.0e-15
n_exponent = 4
activation_energy = 3.0e5
temperature = temp
[../]
[./thermal]
type = ADHeatConductionMaterial
specific_heat = 1.0
thermal_conductivity = 100.
[../]
[./density]
type = ADDensity
density = 1.0
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_ksp'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 20
nl_max_its = 20
nl_rel_tol = 1e-6
nl_abs_tol = 1e-6
l_tol = 1e-5
start_time = 0.0
end_time = 1.0
num_steps = 6
dt = 0.1
[]
[Outputs]
exodus = true
csv = true
[./out]
type = Checkpoint
num_files = 1
[../]
[]
(modules/combined/test/tests/ad_power_law_creep/power_law_creep_smallstrain.i)
# 1x1x1 unit cube with uniform pressure on top face for the case of small strain.
# This test does not have a solid mechanics analog because there is not an equvialent
# small strain with rotations strain calculator material in solid mechanics
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
type = GeneratedMesh
dim = 3
nx = 1
ny = 1
nz = 1
[]
[Variables]
[./temp]
order = FIRST
family = LAGRANGE
initial_condition = 1000.0
[../]
[]
[Modules/TensorMechanics/Master]
[./all]
strain = SMALL
incremental = true
add_variables = true
generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
use_automatic_differentiation = true
[../]
[]
[Functions]
[./top_pull]
type = PiecewiseLinear
x = '0 1'
y = '1 1'
[../]
[]
[Kernels]
[./heat]
type = ADHeatConduction
variable = temp
[../]
[./heat_ie]
type = ADHeatConductionTimeDerivative
variable = temp
[../]
[]
[BCs]
[./u_top_pull]
type = ADPressure
variable = disp_y
component = 1
boundary = top
constant = -10.0e6
function = top_pull
[../]
[./u_bottom_fix]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0.0
[../]
[./u_yz_fix]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0.0
[../]
[./u_xy_fix]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0.0
[../]
[./temp_fix]
type = DirichletBC
variable = temp
boundary = 'bottom top'
value = 1000.0
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 2e11
poissons_ratio = 0.3
constant_on = SUBDOMAIN
[../]
[./radial_return_stress]
type = ADComputeMultipleInelasticStress
inelastic_models = 'power_law_creep'
[../]
[./power_law_creep]
type = ADPowerLawCreepStressUpdate
coefficient = 1.0e-15
n_exponent = 4
activation_energy = 3.0e5
temperature = temp
[../]
[./thermal]
type = ADHeatConductionMaterial
specific_heat = 1.0
thermal_conductivity = 100.
[../]
[./density]
type = ADDensity
density = 1.0
[../]
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
solve_type = 'PJFNK'
petsc_options = '-snes_ksp_ew'
petsc_options_iname = '-ksp_gmres_restart'
petsc_options_value = '101'
line_search = 'none'
l_max_its = 20
nl_max_its = 20
nl_rel_tol = 1e-6
nl_abs_tol = 1e-6
l_tol = 1e-5
start_time = 0.0
end_time = 1.0
num_steps = 10
dt = 0.1
[]
[Outputs]
exodus = true
[]
(modules/tensor_mechanics/test/tests/ad_anisotropic_creep/ad_aniso_creep_z_3d.i)
[Mesh]
[gen]
type = GeneratedMeshGenerator
dim = 3
nx = 2
ny = 2
nz = 10
xmin = 0.0
ymin = 0.0
zmin = 0.0
xmax = 1.0
ymax = 1.0
zmax = 10.0
[]
[corner_node]
type = ExtraNodesetGenerator
new_boundary = '100'
nodes = '9 3'
input = gen
[]
[corner_node_2]
type = ExtraNodesetGenerator
new_boundary = '101'
nodes = '12 1'
input = corner_node
[]
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
volumetric_locking_correction = true
[]
[AuxVariables]
[hydrostatic_stress]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_xx]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_xy]
order = CONSTANT
family = MONOMIAL
[]
[creep_strain_zz]
order = CONSTANT
family = MONOMIAL
[]
[]
[AuxKernels]
[hydrostatic_stress]
type = ADRankTwoScalarAux
variable = hydrostatic_stress
rank_two_tensor = stress
scalar_type = Hydrostatic
[]
[creep_strain_xx]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_xx
index_i = 0
index_j = 0
[]
[creep_strain_xy]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_xy
index_i = 0
index_j = 1
[]
[creep_strain_zz]
type = ADRankTwoAux
rank_two_tensor = creep_strain
variable = creep_strain_zz
index_i = 2
index_j = 2
[]
[sigma_zz]
type = ADRankTwoAux
rank_two_tensor = stress
variable = stress_zz
index_i = 2
index_j = 2
[]
[]
[Functions]
[pull]
type = PiecewiseLinear
x = '0 1.0'
y = '-4e1 -4e1'
[]
[]
[Modules/TensorMechanics/Master]
[all]
strain = FINITE
generate_output = 'elastic_strain_zz stress_zz stress_xx stress_yy stress_xy stress_xz stress_yz'
use_automatic_differentiation = true
add_variables = true
[]
[]
[Materials]
[elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 700
poissons_ratio = 0.0
[]
[elastic_strain]
type = ADComputeMultipleInelasticStress
inelastic_models = "trial_creep_two"
max_iterations = 50
absolute_tolerance = 1e-16
[]
[hill_tensor]
type = HillConstants
# F G H L M N
hill_constants = "0.5 0.25 0.3866 1.6413 1.6413 1.2731"
[]
[trial_creep_two]
type = ADHillCreepStressUpdate
coefficient = 1e-16
n_exponent = 9
m_exponent = 0
activation_energy = 0
# F G H L M N
max_inelastic_increment = 0.00003
absolute_tolerance = 1e-20
relative_tolerance = 1e-20
# Force it to not use integration error
max_integration_error = 100.0
[]
[]
[BCs]
[no_disp_x]
type = ADDirichletBC
variable = disp_y
boundary = 100
value = 0.0
[]
[no_disp_y]
type = ADDirichletBC
variable = disp_x
boundary = 101
value = 0.0
[]
[no_disp_z]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0.0
[]
[pressure]
type = ADPressure
boundary = front
function = pull
variable = disp_z
component = 2
[]
[]
[Executioner]
type = Transient
solve_type = NEWTON
petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
petsc_options_value = 'lu superlu_dist'
nl_rel_tol = 1.0e-13
nl_abs_tol = 1.0e-13
l_max_its = 90
num_steps = 10
dt = 1.0e-4
start_time = 0
automatic_scaling = true
[]
[Postprocessors]
[matl_ts_min]
type = MaterialTimeStepPostprocessor
[]
[max_disp_x]
type = ElementExtremeValue
variable = disp_x
[]
[max_disp_y]
type = ElementExtremeValue
variable = disp_y
[]
[max_hydro]
type = ElementAverageValue
variable = hydrostatic_stress
[]
[dt]
type = TimestepSize
[]
[num_lin]
type = NumLinearIterations
outputs = console
[]
[num_nonlin]
type = NumNonlinearIterations
outputs = console
[]
[creep_strain_zz]
type = ElementalVariableValue
variable = creep_strain_zz
execute_on = 'TIMESTEP_END'
elementid = 39
[]
[elastic_strain_zz]
type = ElementalVariableValue
variable = elastic_strain_zz
execute_on = 'TIMESTEP_END'
elementid = 39
[]
[sigma_zz]
type = ElementalVariableValue
variable = stress_zz
execute_on = 'TIMESTEP_END'
elementid = 39
[]
[]
[Outputs]
csv = true
exodus = true
perf_graph = true
[]
(modules/tensor_mechanics/test/tests/ad_2D_geometries/3D-RZ_finiteStrain_test.i)
# Considers the mechanics solution for a thick spherical shell that is uniformly
# pressurized on the inner and outer surfaces, using 3D geometry.
#
# From Roark (Formulas for Stress and Strain, McGraw-Hill, 1975), the radially-dependent
# circumferential stress in a uniformly pressurized thick spherical shell is given by:
#
# S(r) = [ Pi[ri^3(2r^3+ro^3)] - Po[ro^3(2r^3+ri^3)] ] / [2r^3(ro^3-ri^3)]
#
# where:
# Pi = inner pressure
# Po = outer pressure
# ri = inner radius
# ro = outer radius
#
# The tests assume an inner and outer radii of 5 and 10, with internal and external
# pressures of 100000 and 200000 at t = 1.0, respectively. The resulting compressive
# tangential stress is largest at the inner wall and, from the above equation, has a
# value of -271429.
#
# RESULTS are below. Since stresses are average element values, values for the
# edge element and one-element-in are used to extrapolate the stress to the
# inner surface. The vesrion of the tests that are checked use the coarsest meshes.
#
# Mesh Radial elem S(edge elem) S(one elem in) S(extrap to surf)
# 1D-SPH
# 2D-RZ 12 (x10) -265004 -254665 -270174
# 3D 12 (6x6) -261880 -252811 -266415
#
# 1D-SPH
# 2D-RZ 48 (x10) -269853 -266710 -271425
# 3D 48 (10x10) -268522 -265653 -269957
#
# The numerical solution converges to the analytical solution as the mesh is
# refined.
[Mesh]
file = 3D_mesh.e
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[Modules/TensorMechanics/Master]
[./all]
strain = FINITE
add_variables = true
block = 1
use_displaced_mesh = true
use_automatic_differentiation = true
[../]
[]
[AuxVariables]
[./stress_theta]
order = CONSTANT
family = MONOMIAL
[../]
[./strain_theta]
order = CONSTANT
family = MONOMIAL
[../]
[]
[AuxKernels]
[./stress_theta]
type = RankTwoAux
rank_two_tensor = stress
index_i = 2
index_j = 2
variable = stress_theta
execute_on = timestep_end
[../]
[./strain_theta]
type = RankTwoAux
rank_two_tensor = total_strain
index_i = 2
index_j = 2
variable = strain_theta
execute_on = timestep_end
[../]
[]
[Materials]
[./elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = 1e10
poissons_ratio = 0.345
block = 1
[../]
[./elastic_strain]
type = ADComputeFiniteStrainElasticStress
block = 1
[../]
[]
[BCs]
# pin particle along symmetry planes
[./no_disp_x]
type = ADDirichletBC
variable = disp_x
boundary = xzero
value = 0.0
[../]
[./no_disp_y]
type = ADDirichletBC
variable = disp_y
boundary = yzero
value = 0.0
[../]
[./no_disp_z]
type = ADDirichletBC
variable = disp_z
boundary = zzero
value = 0.0
[../]
# exterior and internal pressures
[./exterior_pressure_x]
type = ADPressure
variable = disp_x
boundary = outer
component = 0
function = '200000*t'
[../]
[./exterior_pressure_y]
type = ADPressure
variable = disp_y
boundary = outer
component = 1
function = '200000*t'
[../]
[./exterior_pressure_z]
type = ADPressure
variable = disp_z
boundary = outer
component = 2
function = '200000*t'
[../]
[./interior_pressure_x]
type = ADPressure
variable = disp_x
boundary = inner
component = 0
function = '100000*t'
[../]
[./interior_pressure_y]
type = ADPressure
variable = disp_y
boundary = inner
component = 1
function = '100000*t'
[../]
[./interior_pressure_z]
type = ADPressure
variable = disp_z
boundary = inner
component = 2
function = '100000*t'
[../]
[]
[Debug]
show_var_residual_norms = true
[]
[Preconditioning]
[./smp]
type = SMP
full = true
[../]
[]
[Executioner]
type = Transient
petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
petsc_options_value = ' 201 hypre boomeramg 10'
line_search = 'none'
#Preconditioned JFNK (default)
solve_type = 'PJFNK'
nl_rel_tol = 5e-9
nl_abs_tol = 1e-10
nl_max_its = 15
l_tol = 1e-3
l_max_its = 50
start_time = 0.0
end_time = 0.2
dt = 0.1
[]
[Postprocessors]
[./strainTheta]
type = ElementAverageValue
variable = strain_theta
[../]
[./stressTheta]
type = ElementAverageValue
variable = stress_theta
[../]
[./stressTheta_pt]
type = PointValue
point = '5.0 0.0 0.0'
#bottom inside edge for comparison to theory; use csv = true
variable = stress_theta
[../]
[]
[Outputs]
exodus = true
[]
(modules/tensor_mechanics/test/tests/rom_stress_update/AD3d.i)
p = 1e5
E = 3.3e11
stress_unit = 'Pa'
[Mesh]
type = GeneratedMesh
dim = 3
nx = 2
ny = 2
nz = 2
[]
[GlobalParams]
displacements = 'disp_x disp_y disp_z'
[]
[AuxVariables]
[temperature]
initial_condition = 900.0
[]
[]
[Modules/TensorMechanics/Master]
[all]
strain = FINITE
add_variables = true
generate_output = 'vonmises_stress'
use_automatic_differentiation = true
[]
[]
[BCs]
[symmy]
type = ADDirichletBC
variable = disp_y
boundary = bottom
value = 0
[]
[symmx]
type = ADDirichletBC
variable = disp_x
boundary = left
value = 0
[]
[symmz]
type = ADDirichletBC
variable = disp_z
boundary = back
value = 0
[]
[pressure_x]
type = ADPressure
variable = disp_x
component = 0
boundary = right
constant = ${p}
[]
[pressure_y]
type = ADPressure
variable = disp_y
component = 1
boundary = top
constant = -${p}
[]
[pressure_z]
type = ADPressure
variable = disp_z
component = 2
boundary = front
constant = -${p}
[]
[]
[Materials]
[elasticity_tensor]
type = ADComputeIsotropicElasticityTensor
youngs_modulus = ${E}
poissons_ratio = 0.3
[]
[stress]
type = ADComputeMultipleInelasticStress
inelastic_models = rom_stress_prediction
[]
[rom_stress_prediction]
type = ADSS316HLAROMANCEStressUpdateTest
temperature = temperature
initial_cell_dislocation_density = 6.0e12
initial_wall_dislocation_density = 4.4e11
outputs = all
stress_unit = ${stress_unit}
[]
[]
[Executioner]
type = Transient
solve_type = 'NEWTON'
nl_abs_tol = 1e-12
automatic_scaling = true
compute_scaling_once = false
num_steps = 5
[]
[Postprocessors]
[effective_strain_avg]
type = ElementAverageValue
variable = effective_creep_strain
[]
[temperature]
type = ElementAverageValue
variable = temperature
[]
[cell_dislocations]
type = ElementAverageValue
variable = cell_dislocations
[]
[wall_disloactions]
type = ElementAverageValue
variable = wall_dislocations
[]
[]
[Outputs]
csv = true
[]