MechanicalContactConstraint.C File Reference

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Functions
	registerMooseObject ("ContactApp", MechanicalContactConstraint)
template<>
InputParameters	validParams< MechanicalContactConstraint > ()

Function Documentation

registerMooseObject()

registerMooseObject	(	"ContactApp"	,
		MechanicalContactConstraint
	)

validParams< MechanicalContactConstraint >()

template<>

InputParameters validParams< MechanicalContactConstraint >

(

)

Definition at line 33 of file MechanicalContactConstraint.C.

{
  InputParameters params = validParams<NodeFaceConstraint>();
  params += ContactAction::commonParameters();
 
  params.addRequiredParam<BoundaryName>("boundary", "The master boundary");
  params.addRequiredParam<BoundaryName>("slave", "The slave boundary");
  params.addRequiredParam<unsigned int>("component",
                                        "An integer corresponding to the direction "
                                        "the variable this kernel acts in. (0 for x, "
                                        "1 for y, 2 for z)");
 
  params.addCoupledVar("disp_x", "The x displacement");
  params.addCoupledVar("disp_y", "The y displacement");
  params.addCoupledVar("disp_z", "The z displacement");
 
  params.addCoupledVar(
      "displacements",
      "The displacements appropriate for the simulation geometry and coordinate system");
 
  params.addRequiredCoupledVar("nodal_area", "The nodal area");
 
  params.set<bool>("use_displaced_mesh") = true;
  params.addParam<Real>(
      "penalty",
      1e8,
      "The penalty to apply.  This can vary depending on the stiffness of your materials");
  params.addParam<Real>("friction_coefficient", 0, "The friction coefficient");
  params.addParam<Real>("tangential_tolerance",
                        "Tangential distance to extend edges of contact surfaces");
  params.addParam<Real>(
      "capture_tolerance", 0, "Normal distance from surface within which nodes are captured");
 
  params.addParam<Real>("tension_release",
                        0.0,
                        "Tension release threshold.  A node in contact "
                        "will not be released if its tensile load is below "
                        "this value.  No tension release if negative.");
 
  params.addParam<bool>(
      "normalize_penalty",
      false,
      "Whether to normalize the penalty parameter with the nodal area for penalty contact.");
  params.addParam<bool>("master_slave_jacobian",
                        true,
                        "Whether to include jacobian entries coupling master and slave nodes.");
  params.addParam<bool>(
      "connected_slave_nodes_jacobian",
      true,
      "Whether to include jacobian entries coupling nodes connected to slave nodes.");
  params.addParam<bool>("non_displacement_variables_jacobian",
                        true,
                        "Whether to include jacobian entries coupling with variables that are not "
                        "displacement variables.");
  params.addParam<unsigned int>("stick_lock_iterations",
                                std::numeric_limits<unsigned int>::max(),
                                "Number of times permitted to switch between sticking and slipping "
                                "in a solution before locking node in a sticked state.");
  params.addParam<Real>("stick_unlock_factor",
                        1.5,
                        "Factor by which frictional capacity must be "
                        "exceeded to permit stick-locked node to slip "
                        "again.");
  params.addParam<Real>("al_penetration_tolerance",
                        "The tolerance of the penetration for augmented Lagrangian method.");
  params.addParam<Real>("al_incremental_slip_tolerance",
                        "The tolerance of the incremental slip for augmented Lagrangian method.");
 
  params.addParam<Real>("al_frictional_force_tolerance",
                        "The tolerance of the frictional force for augmented Lagrangian method.");
  params.addParam<bool>(
      "print_contact_nodes", false, "Whether to print the number of nodes in contact.");
  return params;
}