adaptive_util_impl.h

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/*
 * Copyright (c) 2015:  G-CSC, Goethe University Frankfurt
 * Author: Raphael Prohl
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 */
 
#ifndef ADAPTIVE_UTIL_IMPL_H_
#define ADAPTIVE_UTIL_IMPL_H_
 
#include "lib_grid/refinement/refiner_interface.h"
#include "adaptive_util.h"
 
namespace ug{
namespace SmallStrainMechanics{
 
template<typename TDomain, typename TElem>
void plastic_ip_elem(bool& bPlasticIPs, TElem* elem,
    const LocalVector& locU, SmartPtr<TDomain> dom,
    SmallStrainMechanicsElemDisc<TDomain>& elemDisc)
{
  static const int dim = TDomain::dim;
 
  //  get vertices and extract corner coordinates
  typedef typename TDomain::position_accessor_type position_accessor_type;
  position_accessor_type& aaPos = dom->position_accessor();
  MathVector<dim> coCoord[domain_traits<dim>::MaxNumVerticesOfElem];
  const size_t numVertices = elem->num_vertices();
  for (size_t i = 0; i < numVertices; ++i) {
    coCoord[i] = aaPos[elem->vertex(i)];
  };
 
  int quadOrder = elemDisc.get_quad_order();
 
  //  update the geometry for the Element elem
  DimFEGeometry<dim> geo;
    try{
    geo.update(elem, &(coCoord[0]),
        LFEID(LFEID::LAGRANGE, dim, 1), quadOrder);
  }
    UG_CATCH_THROW("plastic_ip_elem:"
    " Cannot update Finite Element Geometry.");
 
    //  get the material law
    if (elemDisc.get_material_law().invalid())
      UG_THROW("No material law set in plastic_ip_elem \n");
 
  SmartPtr<IMaterialLaw<TDomain> > spMatLaw = elemDisc.get_material_law();
 
  //  pointer to internal variable of current elem
  spMatLaw->internal_vars(elem);
 
  MathMatrix<dim, dim> GradU;
  for (size_t ip = 0; ip < geo.num_ip(); ++ip)
  {
    //  get displacementGradient (GradU)
    spMatLaw->template DisplacementGradient<DimFEGeometry<dim> >(GradU, ip, geo, locU);
 
    number gamma = spMatLaw->plastic_multiplier(ip, GradU);
    if (gamma > 0.0)
    {
      bPlasticIPs = true; return;
    }
    if (gamma == 0.0)
    {
      bPlasticIPs = false;
    }
    if (gamma < 0.0)
      UG_THROW("gamma: " << gamma << "in plastIP_elem \n");
  }
}
 
template <typename TDomain, typename TAlgebra>
void MarkForAdaption_PlasticElem(IRefiner& refiner,
     GridFunction<TDomain, TAlgebra>& u,
     SmallStrainMechanicsElemDisc<TDomain>& elemDisc)
{
//  types
  typedef GridFunction<TDomain, TAlgebra> TFunction;
  typedef typename TFunction::element_type element_type;
  typedef typename DoFDistribution::traits<element_type>::const_iterator const_iterator;
 
  ConstSmartPtr<DoFDistribution> dd = u.dof_distribution();
 
  int numMarkedRefine = 0;
  bool bPlasticIPs = false;
  const_iterator iter = dd->template begin<element_type>();
  const_iterator iterEnd = dd->template end<element_type>();
 
  //  local indices and local algebra
  LocalIndices ind; LocalVector locU;
 
//  loop elements for marking
  for(; iter != iterEnd; ++iter)
  {
    element_type* elem = *iter;
 
    //  get global indices
    u.indices(elem, ind);
 
    //  adapt local algebra
    locU.resize(ind);
 
    //  local vector extract -> locU
    GetLocalVector(locU, u);
 
    //  reset boolean
    bPlasticIPs = false;
 
    //  check, if plastic yielding occurs
    //  at one integration point in the element
    plastic_ip_elem<TDomain, element_type> (bPlasticIPs, elem, locU,
        u.domain(), elemDisc);
 
    //  marks for refinement
    if(bPlasticIPs)
    {
      refiner.mark(elem, RM_REFINE);
      numMarkedRefine++;
    }
  }
 
#ifdef UG_PARALLEL
  if(pcl::NumProcs() > 1)
  {
    UG_LOG("  +++ Marked for refinement on Proc "<<pcl::ProcRank()<<": " << numMarkedRefine << " Elements.\n");
    pcl::ProcessCommunicator com;
    int numMarkedRefineLocal = numMarkedRefine;
    numMarkedRefine = com.allreduce(numMarkedRefineLocal, PCL_RO_SUM);
  }
#endif
 
UG_LOG("  +++ Marked for refinement: " << numMarkedRefine << " Elements.\n");
 
}
 
 
 
} //end of namespace SmallStrainMechanics
} //end of namespace ug
 
#endif /* ADAPTIVE_UTIL_IMPL_H_ */