ContactSlipDamper.h

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
// Moose Includes
#include "GeneralDamper.h"
 
// Forward Declarations
class ContactSlipDamper;
class AuxiliarySystem;
class DisplacedProblem;
class PenetrationLocator;
 
template <>
InputParameters validParams<ContactSlipDamper>();
 
class ContactSlipDamper : public GeneralDamper
{
public:
  ContactSlipDamper(const InputParameters & parameters);
 
  virtual void timestepSetup();
 
protected:
  AuxiliarySystem & _aux_sys;
  MooseSharedPointer<DisplacedProblem> _displaced_problem;
 
  virtual Real computeDamping(const NumericVector<Number> & solution,
                              const NumericVector<Number> & update);
 
  bool operateOnThisInteraction(const PenetrationLocator & pen_loc);
 
  std::set<std::pair<int, int>> _interactions;
 
  int _num_contact_nodes;
  int _num_sticking;
  int _num_slipping;
  int _num_slipping_friction;
  int _num_stick_locked;
  int _num_slip_reversed;
  Real _max_iterative_slip;
  Real _min_damping_factor;
  Real _damping_threshold_factor;
  bool _debug_output;
 
  typedef std::map<std::pair<unsigned int, unsigned int>, PenetrationLocator *>::iterator
      pl_iterator;
};