SimpleContactProblem::OpCalContactTractionOnMaster Struct Reference

RHS-operator for the simple contact element. More...

#include <users_modules/mortar_contact/src/SimpleContact.hpp>

Inheritance diagram for SimpleContactProblem::OpCalContactTractionOnMaster:

Collaboration diagram for SimpleContactProblem::OpCalContactTractionOnMaster:

Public Member Functions
	OpCalContactTractionOnMaster (const string field_name, boost::shared_ptr< CommonDataSimpleContact > common_data_contact)
MoFEMErrorCode	doWork (int side, EntityType type, EntData &data)
	Integrates Lagrange multipliers virtual work on master surface and assembles to global RHS vector. More...

Private Attributes
boost::shared_ptr< CommonDataSimpleContact >	commonDataSimpleContact
VectorDouble	vecF

Detailed Description

RHS-operator for the simple contact element.

Integrates Lagrange multipliers virtual work on master surface and assemble components to RHS global vector.

Definition at line 962 of file SimpleContact.hpp.

Constructor & Destructor Documentation

OpCalContactTractionOnMaster()

SimpleContactProblem::OpCalContactTractionOnMaster::OpCalContactTractionOnMaster ( const string  field_name, boost::shared_ptr< CommonDataSimpleContact >  common_data_contact  )

inline

Definition at line 964 of file SimpleContact.hpp.

        : ContactOp(field_name, UserDataOperator::OPROW, ContactOp::FACEMASTER),
          commonDataSimpleContact(common_data_contact) {}

Member Function Documentation

doWork()

MoFEMErrorCode SimpleContactProblem::OpCalContactTractionOnMaster::doWork	(	int	side,
		EntityType	type,
		EntData &	data
	)

Integrates Lagrange multipliers virtual work on master surface and assembles to global RHS vector.

Integrates Lagrange multipliers virtual work \( \delta W_{\text c}\) on master surface and assembles components to global RHS vector

\[ {\delta W^{(2)}_{\text c}(\lambda, \delta \mathbf{x}^{(2)}}) \,\, = - \int_{{\gamma}^{(1)}_{\text c}} \lambda \mathbf{n}(\mathbf{x}^{(1)}) \cdot \delta{\mathbf{x}^{(2)}} \,\,{ {\text d} {\gamma}} \]

where \({\gamma}^{(1)}_{\text c}\) is the surface integration domain of the slave surface, \( \lambda\) is the Lagrange multiplier, \(\mathbf{n}(\mathbf{x}^{(1)})\) is the outward normal vector at the slave triangle gauss points, \(\mathbf{x}^{(2)}\) are the coordinates of the overlapping gauss points at master triangles.

Definition at line 1535 of file SimpleContact.cpp.

                                              {
  MoFEMFunctionBegin;
 
  const int nb_dofs = data.getIndices().size();
  if (nb_dofs) {
 
    const int nb_gauss_pts = data.getN().size1();
    int nb_base_fun_col = nb_dofs / 3;
 
    vecF.resize(nb_dofs, false);
    vecF.clear();
 
    const double area_m =
        commonDataSimpleContact->areaMaster; // same area in master and slave
 
    auto get_tensor_vec = [](VectorDouble &n, const int r) {
      return FTensor::Tensor1<double *, 3>(&n(r + 0), &n(r + 1), &n(r + 2));
    };
 
    FTensor::Index<'i', 3> i;
 
    auto t_lagrange_slave =
        getFTensor0FromVec(*commonDataSimpleContact->lagMultAtGaussPtsPtr);
 
    auto t_const_unit_n = get_tensor_vec(
        commonDataSimpleContact->normalVectorSlavePtr.get()[0], 0);
 
    auto t_w = getFTensor0IntegrationWeightMaster();
 
    for (int gg = 0; gg != nb_gauss_pts; ++gg) {
 
      double val_m = t_w * area_m;
 
      auto t_base_master = data.getFTensor0N(gg, 0);
      FTensor::Tensor1<FTensor::PackPtr<double *, 3>, 3> t_assemble_m{
          &vecF[0], &vecF[1], &vecF[2]};
 
      for (int bbc = 0; bbc != nb_base_fun_col; ++bbc) {
        const double m = val_m * t_base_master * t_lagrange_slave;
        t_assemble_m(i) -= m * t_const_unit_n(i);
        ++t_base_master;
        ++t_assemble_m;
      }
 
      ++t_lagrange_slave;
      ++t_w;
    } // for gauss points
 
    CHKERR VecSetValues(getSNESf(), data, &*vecF.begin(), ADD_VALUES);
  }
  MoFEMFunctionReturn(0);
}

Member Data Documentation

commonDataSimpleContact

boost::shared_ptr<CommonDataSimpleContact> SimpleContactProblem::OpCalContactTractionOnMaster::commonDataSimpleContact

private

Definition at line 996 of file SimpleContact.hpp.

vecF

VectorDouble SimpleContactProblem::OpCalContactTractionOnMaster::vecF

private

Definition at line 997 of file SimpleContact.hpp.

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The documentation for this struct was generated from the following files:

• users_modules/mortar_contact/src/SimpleContact.hpp
• users_modules/mortar_contact/src/impl/SimpleContact.cpp