Merge pull request #13317 from tophmatthews/ad_creep

AD robustness tests

modules/combined/test/tests/ad_power_law_creep/gold/power_law_creep_out.e

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+../../power_law_creep/gold/power_law_creep_out.e

modules/combined/test/tests/ad_power_law_creep/gold/power_law_creep_restart2_tm_out.e

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+../../power_law_creep/gold/power_law_creep_restart2_tm_out.e

modules/combined/test/tests/ad_power_law_creep/gold/power_law_creep_smallstrain_out.e

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+../../power_law_creep/gold/power_law_creep_smallstrain_out.e

modules/combined/test/tests/ad_power_law_creep/power_law_creep.i

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+# 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 = ADPresetBC
+    variable = disp_y
+    boundary = bottom
+    value = 0.0
+  [../]
+  [./u_yz_fix]
+    type = ADPresetBC
+    variable = disp_x
+    boundary = left
+    value = 0.0
+  [../]
+  [./u_xy_fix]
+    type = ADPresetBC
+    variable = disp_z
+    boundary = back
+    value = 0.0
+  [../]
+  [./temp_fix]
+    type = DirichletBC
+    variable = temp
+    boundary = 'bottom top'
+    value = 1000.0
+  [../]
+[]
+
+[Materials]
+  [./elasticity_tensor]
+    type = ComputeIsotropicElasticityTensor
+    youngs_modulus = 2e11
+    poissons_ratio = 0.3
+  [../]
+  [./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 = HeatConductionMaterial
+    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/ad_power_law_creep/power_law_creep_restart1.i

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+# 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 = ADPresetBC
+    variable = disp_y
+    boundary = bottom
+    value = 0.0
+  [../]
+  [./u_yz_fix]
+    type = ADPresetBC
+    variable = disp_x
+    boundary = left
+    value = 0.0
+  [../]
+  [./u_xy_fix]
+    type = ADPresetBC
+    variable = disp_z
+    boundary = back
+    value = 0.0
+  [../]
+  [./temp_fix]
+    type = DirichletBC
+    variable = temp
+    boundary = 'bottom top'
+    value = 1000.0
+  [../]
+[]
+
+[Materials]
+  [./elasticity_tensor]
+    type = ComputeIsotropicElasticityTensor
+    youngs_modulus = 2e11
+    poissons_ratio = 0.3
+  [../]
+  [./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 = HeatConductionMaterial
+    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
+  [../]
+[]