BMatrixPolicy.h

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#pragma once
 
#include "MathLib/KelvinVector.h"
#include "NumLib/Fem/ShapeMatrixPolicy.h"
 
namespace ProcessLib
{
template <typename ShapeFunction, int DisplacementDim>
class BMatrixPolicyType
{
private:
    template <int N>
    using VectorType =
        typename ShapeMatrixPolicyType<ShapeFunction,
                                       DisplacementDim>::template VectorType<N>;
 
    template <int N, int M>
    using MatrixType = typename ShapeMatrixPolicyType<
        ShapeFunction, DisplacementDim>::template MatrixType<N, M>;
 
    // Dimensions of specific b-matrix for n-points and displacement dimension.
    static int const _number_of_dof = ShapeFunction::NPOINTS * DisplacementDim;
    static int const _kelvin_vector_size =
        MathLib::KelvinVector::kelvin_vector_dimensions(DisplacementDim);
 
public:
    using StiffnessMatrixType = MatrixType<_number_of_dof, _number_of_dof>;
 
    using NodalForceVectorType = VectorType<_number_of_dof>;
 
    using KelvinVectorType = VectorType<_kelvin_vector_size>;
 
    using KelvinMatrixType =
        MatrixType<_kelvin_vector_size, _kelvin_vector_size>;
 
    using BMatrixType = MatrixType<_kelvin_vector_size, _number_of_dof>;
 
    using BBarMatrixType = MatrixType<3, ShapeFunction::NPOINTS>;
};
}  // namespace ProcessLib