MaterialRealDenseMatrixAux

Populate an auxiliary variable with an entry from a dense matrix material property.

Converting a field from the material system, here a component of a matrix material property, to a variable may be desirable for several reasons: to match the format expected by certain kernels (thus lagging the field between time steps) or for output/testing/debugging.

This is particularly useful to examine anisotropic material properties. For output purposes only, an alternative is to use the output_properties argument of the Material or specify output_material_properties in the parameters of the desired output type nested in the [Outputs] block. This AuxKernel is used in the back-end by these parameters.

note

The AD system currently does not support auxiliary variables. If you convert material properties, which do support automatic differentiation, to auxiliary variables, the derivatives will be ignored.

Example syntax

In this example, the MaterialRealDenseMatrixAux is used to examine the first row, first column element of a matrix material property.

  [./densemat00]
    type = MaterialRealDenseMatrixAux
    variable = densemat00
    property = matrix_prop
    row = 0
    column = 0
    execute_on = timestep_end
  [../]

Input Parameters

propertyThe scalar material property name
C++ Type:MaterialPropertyName
Controllable:No
Description:The scalar material property name
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

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 object applies
C++ Type:std::vector<BoundaryName>
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object 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
column0The column component to consider for this kernel
Default:0
C++ Type:unsigned int
Controllable:No
Description:The column component to consider for this kernel
execute_onLINEAR TIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include 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: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 NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, FINAL, CUSTOM, ALWAYS, PRE_DISPLACE.
factor1The factor by which to multiply your material property for visualization
Default:1
C++ Type:double
Controllable:No
Description:The factor by which to multiply your material property for visualization
offset0The offset to add to your material property for visualization
Default:0
C++ Type:double
Controllable:No
Description:The offset to add to your material property for visualization
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.
row0The row component to consider for this kernel
Default:0
C++ Type:unsigned int
Controllable:No
Description:The row component to consider for this kernel

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

(../moose/test/tests/materials/types/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 2
  ny = 2
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./real]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvec0]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvec1]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvec0_qp0]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvec0_qp1]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./realvec0]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./realvec1]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./realvec2]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./densemat00]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./densemat01]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./tensor00]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./tensor11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./tensor22]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvecgrad00]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvecgrad01]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvecgrad02]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvecgrad10]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvecgrad11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./stdvecgrad12]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[AuxKernels]
  [./real0]
    type = MaterialRealAux
    variable = real
    property = real_prop
    execute_on = timestep_end
  [../]
  [./stdvec0]
    type = MaterialStdVectorAux
    variable = stdvec0
    property = stdvec_prop
    index = 0
    execute_on = timestep_end
  [../]
  [./stdvec1]
    type = MaterialStdVectorAux
    variable = stdvec1
    property = stdvec_prop
    index = 1
    execute_on = timestep_end
  [../]
  [./stdvec0_qp0]
    type = MaterialStdVectorAux
    variable = stdvec0_qp0
    property = stdvec_prop_qp
    index = 0
    selected_qp = 0
    execute_on = timestep_end
  [../]
  [./stdvec0_qp1]
    type = MaterialStdVectorAux
    variable = stdvec0_qp1
    property = stdvec_prop_qp
    index = 0
    selected_qp = 1
    execute_on = timestep_end
  [../]
  [./densemat00]
    type = MaterialRealDenseMatrixAux
    variable = densemat00
    property = matrix_prop
    row = 0
    column = 0
    execute_on = timestep_end
  [../]
  [./densemat01]
    type = MaterialRealDenseMatrixAux
    variable = densemat01
    property = matrix_prop
    row = 0
    column = 1
    execute_on = timestep_end
  [../]
  [./realvec0]
    type = MaterialRealVectorValueAux
    variable = realvec0
    property = realvec_prop
    component = 0
    execute_on = timestep_end
  [../]
  [./realvec1]
    type = MaterialRealVectorValueAux
    variable = realvec1
    property = realvec_prop
    component = 1
    execute_on = timestep_end
  [../]
  [./realvec2]
    type = MaterialRealVectorValueAux
    variable = realvec2
    property = realvec_prop
    component = 2
    execute_on = timestep_end
  [../]
  [./realtensor00]
    type = MaterialRealTensorValueAux
    variable = tensor00
    property = tensor_prop
    row = 0
    column = 0
    execute_on = timestep_end
  [../]
  [./realtensor11]
    type = MaterialRealTensorValueAux
    variable = tensor11
    property = tensor_prop
    row = 1
    column = 1
    execute_on = timestep_end
  [../]
  [./realtensor22]
    type = MaterialRealTensorValueAux
    variable = tensor22
    property = tensor_prop
    row = 2
    column = 2
    execute_on = timestep_end
  [../]
  [./stdvecgrad00]
    type = MaterialStdVectorRealGradientAux
    variable = stdvecgrad00
    property = stdvec_grad_prop
  [../]
  [./stdvecgrad01]
    type = MaterialStdVectorRealGradientAux
    variable = stdvecgrad01
    property = stdvec_grad_prop
    component = 1
  [../]
  [./stdvecgrad02]
    type = MaterialStdVectorRealGradientAux
    variable = stdvecgrad02
    property = stdvec_grad_prop
    component = 2
  [../]
  [./stdvecgrad10]
    type = MaterialStdVectorRealGradientAux
    variable = stdvecgrad10
    index = 1
    property = stdvec_grad_prop
  [../]
  [./stdvecgrad11]
    type = MaterialStdVectorRealGradientAux
    variable = stdvecgrad11
    index = 1
    component = 1
    property = stdvec_grad_prop
  [../]
  [./stdvecgrad12]
    type = MaterialStdVectorRealGradientAux
    variable = stdvecgrad12
    index = 1
    component = 2
    property = stdvec_grad_prop
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Materials]
  [./mat]
    type = TypesMaterial
    block = 0
  [../]
[]

[Executioner]
  type = Steady
  solve_type = PJFNK
[]

[Outputs]
  file_base = test_out
  exodus = true
[]