LinearNodalConstraint

Constrains secondary node to move as a linear combination of primary nodes.

The LinearNodalConstraint class constrains the secondary node to move as a linear combination of primary nodes. Primary node ids and corresponding weights are taken as input along with the secondary node set or secondary node ids. This nodal constraint can be enforced either using the penalty formulation or the kinematic formulation.

Input Parameters

  • penaltyThe penalty used for the boundary term

    C++ Type:double

    Controllable:No

    Description:The penalty used for the boundary term

  • primaryThe primary node IDs.

    C++ Type:std::vector<unsigned int>

    Controllable:No

    Description:The primary node IDs.

  • 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

  • weightsThe weights associated with the primary node ids. Must be of the same size as primary nodes

    C++ Type:std::vector<double>

    Controllable:No

    Description:The weights associated with the primary node ids. Must be of the same size as primary nodes

Required Parameters

  • formulationpenaltyFormulation used to calculate constraint - penalty or kinematic.

    Default:penalty

    C++ Type:MooseEnum

    Options:penalty, kinematic

    Controllable:No

    Description:Formulation used to calculate constraint - penalty or kinematic.

  • secondary_node_idsThe list of secondary node ids

    C++ Type:std::vector<unsigned int>

    Controllable:No

    Description:The list of secondary node ids

  • secondary_node_setNaNThe boundary ID associated with the secondary side

    Default:NaN

    C++ Type:BoundaryName

    Controllable:No

    Description:The boundary ID associated with the secondary side

  • variable_secondaryThe name of the variable for the secondary nodes, if it is different from the primary nodes' variable

    C++ Type:NonlinearVariableName

    Controllable:No

    Description:The name of the variable for the secondary nodes, if it is different from the primary nodes' variable

Optional Parameters

  • absolute_value_vector_tagsThe tags for the vectors this residual object should fill with the absolute value of the residual contribution

    C++ Type:std::vector<TagName>

    Controllable:No

    Description:The tags for the vectors this residual object should fill with the absolute value of the residual contribution

  • 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

  • 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.

  • 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

  • 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

References

No citations exist within this document.