ElasticEnergyAux

construction:Undocumented Class

The ElasticEnergyAux has not been documented. The content listed below should be used as a starting point for documenting the class, which includes the typical automatic documentation associated with a MooseObject; however, what is contained is ultimately determined by what is necessary to make the documentation clear for users.

Compute the local elastic energy

Overview

Example Input File Syntax

Input Parameters

variableThe name of the variable that this object applies to
C++ Type:AuxVariableName
Controllable:No
Description:The name of the variable that this object applies to

Required Parameters

base_nameMechanical property base name
C++ Type:std::string
Controllable:No
Description:Mechanical property base name
blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
boundaryThe list of boundaries (ids or names) from the mesh where this boundary condition applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this boundary condition applies
check_boundary_restrictedTrueWhether to check for multiple element sides on the boundary in the case of a boundary restricted, element aux variable. Setting this to false will allow contribution to a single element's elemental value(s) from multiple boundary sides on the same element (example: when the restricted boundary exists on two or more sides of an element, such as at a corner of a mesh
Default:True
C++ Type:bool
Controllable:No
Description:Whether to check for multiple element sides on the boundary in the case of a boundary restricted, element aux variable. Setting this to false will allow contribution to a single element's elemental value(s) from multiple boundary sides on the same element (example: when the restricted boundary exists on two or more sides of an element, such as at a corner of a mesh
execute_onLINEAR TIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include FORWARD, ADJOINT, HOMOGENEOUS_FORWARD, ADJOINT_TIMESTEP_BEGIN, ADJOINT_TIMESTEP_END, NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, FINAL, CUSTOM, ALWAYS, PRE_DISPLACE.
Default:LINEAR TIMESTEP_END
C++ Type:ExecFlagEnum
Options:FORWARD, ADJOINT, HOMOGENEOUS_FORWARD, ADJOINT_TIMESTEP_BEGIN, ADJOINT_TIMESTEP_END, NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, FINAL, CUSTOM, ALWAYS, PRE_DISPLACE
Controllable:No
Description:The list of flag(s) indicating when this object should be executed, the available options include FORWARD, ADJOINT, HOMOGENEOUS_FORWARD, ADJOINT_TIMESTEP_BEGIN, ADJOINT_TIMESTEP_END, NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, FINAL, CUSTOM, ALWAYS, PRE_DISPLACE.
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.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
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_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

Advanced Parameters

Input Files

(modules/tensor_mechanics/test/tests/auxkernels/tensorelasticenergyaux.i)
(modules/tensor_mechanics/test/tests/elastic_patch/elastic_patch.i)
(modules/tensor_mechanics/test/tests/elastic_patch/elastic_patch_quadratic.i)
(modules/tensor_mechanics/test/tests/anisotropic_patch/anisotropic_patch_test.i)
(modules/contact/test/tests/mortar_dynamics/block-dynamics-reference.i)

(modules/tensor_mechanics/test/tests/auxkernels/tensorelasticenergyaux.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  nz = 0
  xmax = 3
  ymax = 2
  zmax = 0
  elem_type = QUAD4
[]

[GlobalParams]
  displacements = 'disp_x disp_y'
[]

[Variables]
  [./dummy]
  [../]
[]

[AuxVariables]
  [./disp_x]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = sin(x)*0.1
    [../]
  [../]
  [./disp_y]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = cos(y)*0.05
    [../]
  [../]
  [./E]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./elastic_energy]
    type = ElasticEnergyAux
    variable = E
  [../]
[]

[Materials]
  [./elasticity]
    type = ComputeElasticityTensor
    fill_method = symmetric9
    C_ijkl = '1 2 4 3 2 5 1 3 1'
  [../]
  [./strain]
    type = ComputeSmallStrain
  [../]
  [./stress]
    type = ComputeLinearElasticStress
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
[]

[Problem]
  kernel_coverage_check = false
[]

[Outputs]
  exodus = true
[]

(modules/tensor_mechanics/test/tests/elastic_patch/elastic_patch.i)

# Patch Test

# This test is designed to compute constant xx, yy, zz, xy, yz, and zx
#  stress on a set of irregular hexes.  The mesh is composed of one
#  block with seven elements.  The elements form a unit cube with one
#  internal element.  There is a nodeset for each exterior node.

# The cube is displaced by 1e-6 units in x, 2e-6 in y, and 3e-6 in z.
#  The faces are sheared as well (1e-6, 2e-6, and 3e-6 for xy, yz, and
#  zx).  This gives a uniform strain/stress state for all six unique
#  tensor components.

# With Young's modulus at 1e6 and Poisson's ratio at 0, the shear
#  modulus is 5e5 (G=E/2/(1+nu)).  Therefore,
#
#  stress xx = 1e6 * 1e-6 = 1
#  stress yy = 1e6 * 2e-6 = 2
#  stress zz = 1e6 * 3e-6 = 3
#  stress xy = 2 * 5e5 * 1e-6 / 2 = 0.5
#             (2 * G   * gamma_xy / 2 = 2 * G * epsilon_xy)
#  stress yz = 2 * 5e5 * 2e-6 / 2 = 1
#  stress zx = 2 * 5e5 * 3e-6 / 2 = 1.5

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
  block = '1 2 3 4 5 6 7'
[]

[Mesh]#Comment
  file = elastic_patch.e
[] # Mesh

[Functions]
  [./rampConstant1]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 1e-6
  [../]
  [./rampConstant2]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 2e-6
  [../]
  [./rampConstant3]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 3e-6
  [../]
  [./rampConstant4]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 4e-6
  [../]
  [./rampConstant6]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 6e-6
  [../]
[] # Functions

[Variables]

  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_z]
    order = FIRST
    family = LAGRANGE
  [../]

[] # Variables

[AuxVariables]

  [./stress_xx]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_yy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_zz]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_xy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_yz]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_zx]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./elastic_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./vonmises]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./hydrostatic]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./firstinv]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./secondinv]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./thirdinv]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./maxprincipal]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./midprincipal]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./minprincipal]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./direction]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./max_shear]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./sint]
    order = CONSTANT
    family = MONOMIAL
  [../]

[] # AuxVariables

[Kernels]
  [./TensorMechanics]
    use_displaced_mesh = true
  [../]
[]

[AuxKernels]

  [./stress_xx]
    type = RankTwoAux
    rank_two_tensor = stress
    variable = stress_xx
    index_i = 0
    index_j = 0
  [../]
  [./stress_yy]
    type = RankTwoAux
    rank_two_tensor = stress
    variable = stress_yy
    index_i = 1
    index_j = 1
  [../]
  [./stress_zz]
    type = RankTwoAux
    rank_two_tensor = stress
    variable = stress_zz
    index_i = 2
    index_j = 2
  [../]
  [./stress_xy]
    type = RankTwoAux
    rank_two_tensor = stress
    variable = stress_xy
    index_i = 0
    index_j = 1
  [../]
  [./stress_yz]
    type = RankTwoAux
    rank_two_tensor = stress
    variable = stress_yz
    index_i = 1
    index_j = 2
  [../]
  [./stress_zx]
    type = RankTwoAux
    rank_two_tensor = stress
    variable = stress_zx
    index_i = 2
    index_j = 0
  [../]
  [./elastic_energy]
    type = ElasticEnergyAux
    variable = elastic_energy
  [../]
  [./vonmises]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = vonmises
    scalar_type = vonmisesStress
  [../]
  [./hydrostatic]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = hydrostatic
    scalar_type = hydrostatic
  [../]
  [./fi]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = firstinv
    scalar_type = firstinvariant
  [../]
  [./si]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = secondinv
    scalar_type = secondinvariant
  [../]
  [./ti]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = thirdinv
    scalar_type = thirdinvariant
  [../]
  [./maxprincipal]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = maxprincipal
    scalar_type = MaxPRiNCIpAl
  [../]
  [./midprincipal]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = midprincipal
    scalar_type = MidPRiNCIpAl
  [../]
  [./minprincipal]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = minprincipal
    scalar_type = MiNPRiNCIpAl
  [../]
  [./direction]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = direction
    scalar_type = direction
    direction = '1 1 1'
  [../]
  [./max_shear]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = max_shear
    scalar_type = MaxShear
  [../]
  [./sint]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    variable = sint
    scalar_type = StressIntensity
  [../]


[] # AuxKernels

[BCs]

  [./node1_x]
    type = DirichletBC
    variable = disp_x
    boundary = 1
    value = 0.0
  [../]
  [./node1_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 1
    function = rampConstant2
  [../]
  [./node1_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 1
    function = rampConstant3
  [../]

  [./node2_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 2
    function = rampConstant1
  [../]
  [./node2_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 2
    function = rampConstant2
  [../]
  [./node2_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 2
    function = rampConstant6
  [../]

  [./node3_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 3
    function = rampConstant1
  [../]
  [./node3_y]
    type = DirichletBC
    variable = disp_y
    boundary = 3
    value = 0.0
  [../]
  [./node3_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 3
    function = rampConstant3
  [../]

  [./node4_x]
    type = DirichletBC
    variable = disp_x
    boundary = 4
    value = 0.0
  [../]
  [./node4_y]
    type = DirichletBC
    variable = disp_y
    boundary = 4
    value = 0.0
  [../]
  [./node4_z]
    type = DirichletBC
    variable = disp_z
    boundary = 4
    value = 0.0
  [../]

  [./node5_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 5
    function = rampConstant1
  [../]
  [./node5_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 5
    function = rampConstant4
  [../]
  [./node5_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 5
    function = rampConstant3
  [../]

  [./node6_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 6
    function = rampConstant2
  [../]
  [./node6_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 6
    function = rampConstant4
  [../]
  [./node6_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 6
    function = rampConstant6
  [../]

  [./node7_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 7
    function = rampConstant2
  [../]
  [./node7_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 7
    function = rampConstant2
  [../]
  [./node7_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 7
    function = rampConstant3
  [../]

  [./node8_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 8
    function = rampConstant1
  [../]
  [./node8_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 8
    function = rampConstant2
  [../]
  [./node8_z]
    type = DirichletBC
    variable = disp_z
    boundary = 8
    value = 0.0
  [../]


[] # BCs

[Materials]

  [./elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 1e6
    poissons_ratio = 0.0
  [../]

  [./strain]
    type = ComputeFiniteStrain
  [../]

  [./stress]
    type = ComputeFiniteStrainElasticStress
  [../]

[] # Materials

[Executioner]

  type = Transient

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'

  nl_abs_tol = 1e-10

  l_max_its = 20

  start_time = 0.0
  dt = 1.0
  num_steps = 2
  end_time = 2.0
[] # Executioner

[Outputs]
  exodus = true
[] # Outputs

(modules/tensor_mechanics/test/tests/elastic_patch/elastic_patch_quadratic.i)

# Patch Test for second order hex elements (HEX20)
#
# From Abaqus, Verification Manual, 1.5.2
#
# This test is designed to compute constant xx, yy, zz, xy, yz, and zx
#  stress on a set of irregular hexes.  The mesh is composed of one
#  block with seven elements.  The elements form a unit cube with one
#  internal element.  There is a nodeset for each exterior node.

# The cube is displaced on all exterior nodes using the functions,
#
#    ux = 1e-4 * (2x + y + z) / 2
#    uy = 1e-4 * (x + 2y + z) / 2
#    ux = 1e-4 * (x + y + 2z) / 2
#
#  giving uniform strains of
#
#    exx = eyy = ezz = 2*exy = 2*eyz = 2*exz = 1e-4
#
#
# Hooke's Law provides an analytical solution for the uniform stress state.
#  For example,
#
#    stress xx = lambda(exx + eyy + ezz) + 2 * G * exx
#    stress xy = 2 * G * exy
#
#   where:
#
#    lambda = (2 * G * nu) / (1 - 2 * nu)
#    G = 0.5 * E / (1 + nu)
#
# For the test below, E = 1e6 and nu = 0.25, giving lambda = G = 4e5
#
# Thus
#
#    stress xx = 4e5 * (3e-4) + 2 * 4e5 * 1e-4 = 200
#    stress xy = 2 * 4e5 * 1e-4 / 2 = 40
#
[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]
[Mesh]
  file = elastic_patch_quadratic.e
[] # Mesh

[Functions]
  [./xDispFunc]
    type = ParsedFunction
    expression = 5e-5*(2*x+y+z)
  [../]
  [./yDispFunc]
    type = ParsedFunction
    expression = 5e-5*(x+2*y+z)
  [../]
  [./zDispFunc]
    type = ParsedFunction
    expression = 5e-5*(x+y+2*z)
  [../]
[] # Functions

[Variables]
  [./disp_x]
    order = SECOND
    family = LAGRANGE
  [../]
  [./disp_y]
    order = SECOND
    family = LAGRANGE
  [../]
  [./disp_z]
    order = SECOND
    family = LAGRANGE
  [../]
[] # Variables

[AuxVariables]
  [./stress_xx]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_yy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_zz]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_xy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_yz]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stress_zx]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./elastic_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./vonmises]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./hydrostatic]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./firstinv]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./secondinv]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./thirdinv]
    order = CONSTANT
    family = MONOMIAL
  [../]
[] # AuxVariables

[Kernels]
  [./TensorMechanics]
    use_displaced_mesh = true
  [../]
[]

[AuxKernels]
  [./stress_xx]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 0
    index_j = 0
    variable = stress_xx
  [../]
  [./stress_yy]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 1
    index_j = 1
    variable = stress_yy
  [../]
  [./stress_zz]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 2
    index_j = 2
    variable = stress_zz
  [../]
  [./stress_xy]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 0
    index_j = 1
    variable = stress_xy
  [../]
  [./stress_yz]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 1
    index_j = 2
    variable = stress_yz
  [../]
  [./stress_zx]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 2
    index_j = 0
    variable = stress_zx
  [../]
  [./elastic_energy]
    type = ElasticEnergyAux
    variable = elastic_energy
  [../]
  [./vonmises]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    scalar_type = VonMisesStress
    variable = vonmises
  [../]
  [./hydrostatic]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    scalar_type = Hydrostatic
    variable = hydrostatic
  [../]
  [./fi]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    scalar_type = FirstInvariant
    variable = firstinv
  [../]
  [./si]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    scalar_type = SecondInvariant
    variable = secondinv
  [../]
  [./ti]
    type = RankTwoScalarAux
    rank_two_tensor = stress
    scalar_type = ThirdInvariant
    variable = thirdinv
  [../]
[] # AuxKernels

[BCs]
  [./all_nodes_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = '1 2 3 4 6 7 8 9 10 12 15 17 18 19 20 21 23 24 25 26'
    function = xDispFunc
  [../]
  [./all_nodes_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = '1 2 3 4 6 7 8 9 10 12 15 17 18 19 20 21 23 24 25 26'
    function = yDispFunc
  [../]
  [./all_nodes_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = '1 2 3 4 6 7 8 9 10 12 15 17 18 19 20 21 23 24 25 26'
    function = zDispFunc
  [../]
[] # BCs

[Materials]
  [./elast_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 1e6
    poissons_ratio = 0.25
  [../]
  [./strain]
    type = ComputeSmallStrain
  [../]
  [./stress]
    type = ComputeLinearElasticStress
  [../]
[] # Materials

[Executioner]
  type = Transient

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'

  nl_rel_tol = 1e-6

  l_max_its = 20

  start_time = 0.0
  dt = 1.0
  num_steps = 1
  end_time = 1.0
[] # Executioner

[Outputs]
  [./out]
    type = Exodus
    elemental_as_nodal = true
  [../]
[] # Outputs

(modules/tensor_mechanics/test/tests/anisotropic_patch/anisotropic_patch_test.i)

# Patch Test

# This test is designed to compute constant xx, yy, zz, xy, yz, and zx
#  stress on a set of irregular hexes.  The mesh is composed of one
#  block with seven elements.  The elements form a unit cube with one
#  internal element.  There is a nodeset for each exterior node.

# The cube is displaced by 1e-6 units in x, 2e-6 in y, and 3e-6 in z.
#  The faces are sheared as well (1e-6, 2e-6, and 3e-6 for xy, yz, and
#  zx).  This gives a uniform strain/stress state for all six unique
#  tensor components.

# With Young's modulus at 1e6 and Poisson's ratio at 0, the shear
#  modulus is 5e5 (G=E/2/(1+nu)).  Therefore,
#
#  stress xx = 1e6 * 1e-6 = 1
#  stress yy = 1e6 * 2e-6 = 2
#  stress zz = 1e6 * 3e-6 = 3
#  stress xy = 2 * 5e5 * 1e-6 / 2 = 0.5
#             (2 * G   * gamma_xy / 2 = 2 * G * epsilon_xy)
#  stress yz = 2 * 5e5 * 2e-6 / 2 = 1
#  stress zx = 2 * 5e5 * 3e-6 / 2 = 1.5

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
  block = '1 2 3 4 5 6 7'
[]

[Mesh]#Comment
  file = anisotropic_patch_test.e
[] # Mesh

[Functions]
  [./rampConstant1]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 1e-6
  [../]
  [./rampConstant2]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 2e-6
  [../]
  [./rampConstant3]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 3e-6
  [../]
  [./rampConstant4]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 4e-6
  [../]
  [./rampConstant6]
    type = PiecewiseLinear
    x = '0. 1. 2.'
    y = '0. 1. 1.'
    scale_factor = 6e-6
  [../]
[] # Functions

[Variables]
  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]
  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]
  [./disp_z]
    order = FIRST
    family = LAGRANGE
  [../]
[] # Variables

[AuxVariables]
  [./elastic_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
[] # AuxVariables

[Modules/TensorMechanics/Master]
  [./all]
    strain = SMALL
    add_variables = true
    generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz stress_zx vonmises_stress hydrostatic_stress firstinv_stress secondinv_stress thirdinv_stress'
  [../]
[]

[AuxKernels]
  [./elastic_energy]
    type = ElasticEnergyAux
    variable = elastic_energy
  [../]
[] # AuxKernels

[BCs]
  [./node1_x]
    type = DirichletBC
    variable = disp_x
    boundary = 1
    value = 0.0
  [../]
  [./node1_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 1
    function = rampConstant2
  [../]
  [./node1_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 1
    function = rampConstant3
  [../]

  [./node2_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 2
    function = rampConstant1
  [../]
  [./node2_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 2
    function = rampConstant2
  [../]
  [./node2_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 2
    function = rampConstant6
  [../]

  [./node3_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 3
    function = rampConstant1
  [../]
  [./node3_y]
    type = DirichletBC
    variable = disp_y
    boundary = 3
    value = 0.0
  [../]
  [./node3_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 3
    function = rampConstant3
  [../]

  [./node4_x]
    type = DirichletBC
    variable = disp_x
    boundary = 4
    value = 0.0
  [../]
  [./node4_y]
    type = DirichletBC
    variable = disp_y
    boundary = 4
    value = 0.0
  [../]
  [./node4_z]
    type = DirichletBC
    variable = disp_z
    boundary = 4
    value = 0.0
  [../]

  [./node5_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 5
    function = rampConstant1
  [../]
  [./node5_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 5
    function = rampConstant4
  [../]
  [./node5_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 5
    function = rampConstant3
  [../]

  [./node6_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 6
    function = rampConstant2
  [../]
  [./node6_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 6
    function = rampConstant4
  [../]
  [./node6_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 6
    function = rampConstant6
  [../]

  [./node7_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 7
    function = rampConstant2
  [../]
  [./node7_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 7
    function = rampConstant2
  [../]
  [./node7_z]
    type = FunctionDirichletBC
    variable = disp_z
    boundary = 7
    function = rampConstant3
  [../]

  [./node8_x]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 8
    function = rampConstant1
  [../]
  [./node8_y]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 8
    function = rampConstant2
  [../]
  [./node8_z]
    type = DirichletBC
    variable = disp_z
    boundary = 8
    value = 0.0
  [../]
[] # BCs

[Materials]
  [./elastic_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '1e6 0.0 0.0 1e6 0.0 1e6 0.5e6 0.5e6 0.5e6'
    fill_method = symmetric9
    euler_angle_1 = 18.0
    euler_angle_2 = 43.0
    euler_angle_3 = 177.0
#    Isotropic material constants
#    The three euler angles do not matter
#    youngs_modulus = 1e6
#    poissons_ratio = 0.0
  [../]
  [./stress]
    type = ComputeLinearElasticStress
  [../]
[] # Materials

[Executioner]
  type = Transient

  nl_abs_tol = 1e-10
  l_max_its = 20

  start_time = 0.0
  dt = 1.0
  num_steps = 2
  end_time = 2.0
[] # Executioner

[Outputs]
  file_base = anisotropic_patch_test_out
  [./exodus]
    type = Exodus
    elemental_as_nodal = true
  [../]
[] # Outputs

(modules/contact/test/tests/mortar_dynamics/block-dynamics-reference.i)

starting_point = 2e-1
offset = -0.19

[GlobalParams]
  displacements = 'disp_x disp_y'
[]

[Mesh]
  file = long-bottom-block-1elem-blocks.e
[]

[Variables]
  [disp_x]
    block = '1 2'
  []
  [disp_y]
    block = '1 2'
  []
  [normal_lm]
    block = 3
    use_dual = true
  []
[]

[ICs]
  [disp_y]
    block = 2
    variable = disp_y
    value = '${fparse starting_point + offset}'
    type = ConstantIC
  []
[]

[Kernels]
  [DynamicTensorMechanics]
    displacements = 'disp_x disp_y'
    generate_output = 'stress_xx stress_yy'
    strain = FINITE
    block = '1 2'
    zeta = 1.0
    alpha = 0.0
  []
  [inertia_x]
    type = InertialForce
    variable = disp_x
    velocity = vel_x
    acceleration = accel_x
    beta = 0.25
    gamma = 0.5
    alpha = 0
    eta = 0.0
    block = '1 2'
  []
  [inertia_y]
    type = InertialForce
    variable = disp_y
    velocity = vel_y
    acceleration = accel_y
    beta = 0.25
    gamma = 0.5
    alpha = 0
    eta = 0.0
    block = '1 2'
  []
[]

[Materials]
  [elasticity_2]
    type = ComputeIsotropicElasticityTensor
    block = '2'
    youngs_modulus = 1e6
    poissons_ratio = 0.3
  []
  [elasticity_1]
    type = ComputeIsotropicElasticityTensor
    block = '1'
    youngs_modulus = 1e8
    poissons_ratio = 0.3
  []
  [stress]
    type = ComputeFiniteStrainElasticStress
    block = '1 2'
  []
  [strain]
    type = ComputeFiniteStrain
    block = '1 2'
  []
  [density]
    type = GenericConstantMaterial
    block = '1 2'
    prop_names = 'density'
    prop_values = '7750'
  []
[]

[AuxVariables]
  [vel_x]
    block = '1 2'
  []
  [accel_x]
    block = '1 2'
  []
  [vel_y]
    block = '1 2'
  []
  [accel_y]
    block = '1 2'
  []
  [vel_z]
    block = '1 2'
  []
  [accel_z]
    block = '1 2'
  []
  [kinetic_energy]
    order = CONSTANT
    family = MONOMIAL
  []
  [elastic_energy]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [accel_x]
    type = NewmarkAccelAux
    variable = accel_x
    displacement = disp_x
    velocity = vel_x
    beta = 0.25
    execute_on = 'timestep_end'
  []
  [vel_x]
    type = NewmarkVelAux
    variable = vel_x
    acceleration = accel_x
    gamma = 0.5
    execute_on = 'timestep_end'
  []
  [accel_y]
    type = NewmarkAccelAux
    variable = accel_y
    displacement = disp_y
    velocity = vel_y
    beta = 0.25
    execute_on = 'timestep_end'
  []
  [vel_y]
    type = NewmarkVelAux
    variable = vel_y
    acceleration = accel_y
    gamma = 0.5
    execute_on = 'timestep_end'
  []
  [kinetic_energy]
    type = KineticEnergyAux
    block = '1 2'
    variable = kinetic_energy
    newmark_velocity_x = vel_x
    newmark_velocity_y = vel_y
    newmark_velocity_z = 0.0
    density = density
  []
  [elastic_energy]
    type = ElasticEnergyAux
    variable = elastic_energy
    block = '1 2'
  []
[]


# User object provides the contact force (e.g. LM)
# for the application of the generalized force
[UserObjects]
  [weighted_gap_uo]
    type = LMWeightedGapUserObject
    primary_boundary = 20
    secondary_boundary = 10
    primary_subdomain = 4
    secondary_subdomain = 3
    lm_variable = normal_lm
    disp_x = disp_x
    disp_y = disp_y
  []
[]


[Constraints]
  # Not using 'dynamic' constraints results in poor enforcement of contact
  # constraints and lack of kinetic and elastic energy conservation.
  [weighted_gap_lm]
    type = ComputeDynamicWeightedGapLMMechanicalContact
    primary_boundary = 20
    secondary_boundary = 10
    primary_subdomain = 4
    secondary_subdomain = 3
    variable = normal_lm
    disp_x = disp_x
    disp_y = disp_y
    newmark_beta = 0.25
    newmark_gamma = 0.5
    use_displaced_mesh = true
    # Capture tolerance is important. If too small, stabilization takes longer
    capture_tolerance = 1.0e-5
    c = 1.0e6
  []

  [normal_x]
    type = NormalMortarMechanicalContact
    primary_boundary = 20
    secondary_boundary = 10
    primary_subdomain = 4
    secondary_subdomain = 3
    variable = normal_lm
    secondary_variable = disp_x
    component = x
    use_displaced_mesh = true
    compute_lm_residuals = false
    weighted_gap_uo = weighted_gap_uo
  []
  [normal_y]
    type = NormalMortarMechanicalContact
    primary_boundary = 20
    secondary_boundary = 10
    primary_subdomain = 4
    secondary_subdomain = 3
    variable = normal_lm
    secondary_variable = disp_y
    component = y
    use_displaced_mesh = true
    compute_lm_residuals = false
    weighted_gap_uo = weighted_gap_uo
  []
[]

[BCs]
  [botx]
    type = DirichletBC
    variable = disp_x
    boundary = 40
    value = 0.0
  []
  [boty]
    type = DirichletBC
    variable = disp_y
    boundary = 40
    value = 0.0
  []
  [topy]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 30
    function = '${starting_point} * cos(2 * pi / 4 * t) + ${offset}'
  []
  [leftx]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 30 # 50
    function = '0' # '1e-2*t'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.275 # 8.0
  dt = 0.025
  dtmin = .025
  solve_type = 'NEWTON'
  petsc_options = '-snes_converged_reason -ksp_converged_reason -snes_linesearch_monitor'
  petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount'
  petsc_options_value = 'lu       NONZERO               1e-15'
  nl_max_its = 50
  line_search = 'none'
  [TimeIntegrator]
    type = NewmarkBeta
    beta = 0.25
    gamma = 0.5
  []
[]

[Debug]
  show_var_residual_norms = true
[]

[Outputs]
  exodus = true
  checkpoint = true
  csv = true
[]

[Postprocessors]
  active = 'contact total_kinetic_energy total_elastic_energy'
  [num_nl]
    type = NumNonlinearIterations
  []
  [cumulative]
    type = CumulativeValuePostprocessor
    postprocessor = num_nl
  []
  [contact]
    type = ContactDOFSetSize
    variable = normal_lm
    subdomain = '3'
    execute_on = 'nonlinear timestep_end'
  []
  [total_kinetic_energy]
    type = ElementIntegralVariablePostprocessor
    variable = kinetic_energy
    block = '1 2'
  []
  [total_elastic_energy]
    type = ElementIntegralVariablePostprocessor
    variable = elastic_energy
    block = '1 2'
  []
[]

Overview
Example Input File Syntax
Input Parameters
Input Files