ComputeFrictionalForceLMMechanicalContact.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* 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

#include "ComputeWeightedGapLMMechanicalContact.h"
#include "Function.h"

class WeightedVelocitiesUserObject;

class ComputeFrictionalForceLMMechanicalContact : public ComputeWeightedGapLMMechanicalContact
{
public:
  static InputParameters validParams();

  ComputeFrictionalForceLMMechanicalContact(const InputParameters & parameters);
  void residualSetup() override;
  void post() override;

  void
  incorrectEdgeDroppingPost(const std::unordered_set<const Node *> & inactive_lm_nodes) override;

protected:
  virtual void computeQpProperties() override;

  virtual void computeQpIProperties() override;

  virtual void enforceConstraintOnDof(const DofObject * const dof) override;

  virtual void enforceConstraintOnDof3d(const DofObject * const dof);

  ADReal computeFrictionValue(const ADReal & contact_pressure,
                              const ADReal & tangential_vel,
                              const ADReal & tangential_vel_dir);

  std::unordered_map<const DofObject *, std::array<ADReal, 2>> _dof_to_weighted_tangential_velocity;

  std::unordered_map<const DofObject *, std::array<ADReal, 2>> _dof_to_real_tangential_velocity;

  std::array<const ADReal *, 2> _tangential_vel_ptr = {{nullptr, nullptr}};

  std::array<ADReal, 2> _qp_tangential_velocity;

  std::array<ADReal, 2> _qp_real_tangential_velocity;

  ADRealVectorValue _qp_tangential_velocity_nodal;

  ADRealVectorValue _qp_real_tangential_velocity_nodal;

  const WeightedVelocitiesUserObject & _weighted_velocities_uo;

  const Real _c_t;

  std::vector<MooseVariable *> _friction_vars;

  const ADVariableValue & _secondary_x_dot;

  const ADVariableValue & _primary_x_dot;

  const ADVariableValue & _secondary_y_dot;

  const ADVariableValue & _primary_y_dot;

  const ADVariableValue * const _secondary_z_dot;

  const ADVariableValue * const _primary_z_dot;

  const Real _epsilon;

  const Real _mu;

  const Function * const _function_friction;

  const bool _has_friction_function;

  bool _3d;
};