# MaterialRankFourTensorAux

Access a component of a RankFourTensor for automatic material property output

This auxkernel is added automatically by the MaterialOutputAction if an outputs parameter is specified in a Material block and a RankFourTensor material property is declared by the material.

## Input Parameters

• iThe index i of ijkl for the tensor to output

C++ Type:unsigned int

Options:

Description:The index i of ijkl for the tensor to output

• kThe index k of ijkl for the tensor to output

C++ Type:unsigned int

Options:

Description:The index k of ijkl for the tensor to output

• jThe index j of ijkl for the tensor to output

C++ Type:unsigned int

Options:

Description:The index j of ijkl for the tensor to output

• lThe index l of ijkl for the tensor to output

C++ Type:unsigned int

Options:

Description:The index l of ijkl for the tensor to output

• variableThe name of the variable that this object applies to

C++ Type:AuxVariableName

Options:

Description:The name of the variable that this object applies to

• propertyThe scalar material property name

C++ Type:MaterialPropertyName

Options:

Description:The scalar material property name

### Required Parameters

• 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, FINAL, CUSTOM.

Default:LINEAR TIMESTEP_END

C++ Type:ExecFlagEnum

Options:NONE INITIAL LINEAR NONLINEAR TIMESTEP_END TIMESTEP_BEGIN FINAL CUSTOM

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, FINAL, CUSTOM.

• boundaryThe list of boundary IDs from the mesh where this boundary condition applies

C++ Type:std::vector

Options:

Description:The list of boundary IDs from the mesh where this boundary condition applies

Default:0

C++ Type:double

Options:

• blockThe list of block ids (SubdomainID) that this object will be applied

C++ Type:std::vector

Options:

Description:The list of block ids (SubdomainID) that this object will be applied

• factor1The factor by which to multiply your material property for visualization

Default:1

C++ Type:double

Options:

Description:The factor by which to multiply your material property for visualization

### Optional Parameters

• control_tagsAdds user-defined labels for accessing object parameters via control logic.

C++ Type:std::vector

Options:

Description:Adds user-defined labels for accessing object parameters via control logic.

• enableTrueSet the enabled status of the MooseObject.

Default:True

C++ Type:bool

Options:

Description:Set the enabled status of the MooseObject.

• seed0The seed for the master random number generator

Default:0

C++ Type:unsigned int

Options:

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

Options:

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.