oomph::AnisotropicHookean Class Reference

#include <AnisotropicHookean.h>

Inheritance diagram for oomph::AnisotropicHookean:

Public Member Functions
void	setAnisotropy (std::array< double, 3 > anisotropy)
	AnisotropicHookean (double *nu_pt, double *e_pt)
void	calculate_second_piola_kirchhoff_stress (const DenseMatrix< double > &g, const DenseMatrix< double > &G, DenseMatrix< double > &sigma)

Private Attributes
std::array< double, 3 >	anisotropy_ { 1.0, 1.0, 1.0 }

Detailed Description

Adds anisotropy to the general Hookean constitutive law

Constructor & Destructor Documentation

AnisotropicHookean()

oomph::AnisotropicHookean::AnisotropicHookean ( double *  nu_pt, double *  e_pt  )

inline

The constructor takes the pointers to values of material parameters: Poisson's ratio and Young's modulus.

        : GeneralisedHookean( nu_pt, e_pt ) {}

Member Function Documentation

calculate_second_piola_kirchhoff_stress()

void oomph::AnisotropicHookean::calculate_second_piola_kirchhoff_stress ( const DenseMatrix< double > &  g, const DenseMatrix< double > &  G, DenseMatrix< double > &  sigma  )

inline

Calculate the contravariant 2nd Piola Kirchhoff stress tensor. Arguments are the covariant undeformed (stress-free) and deformed metric tensors, g and G, and the matrix in which to return the stress tensor.

    {
        GeneralisedHookean::calculate_second_piola_kirchhoff_stress(g, G, sigma);
 
        // Make anisotropic
        const unsigned dim = sigma.nrow();
        for (unsigned i = 0; i < dim; i++)
        {
            for ( unsigned j = 0; j < dim; j++ )
            {
                sigma( i, j) *= anisotropy_[i];
            }
        }
 
        // Symmetrize
        for (unsigned i = 0; i < dim; i++)
        {
            for (unsigned j = 0; j < i; j++)
            {
                sigma(i, j) = sigma(j, i);
            }
        }
    }

References anisotropy_, and constants::i.

setAnisotropy()

void oomph::AnisotropicHookean::setAnisotropy ( std::array< double, 3 >  anisotropy )

inline

                                                       {
        anisotropy_ = anisotropy;
    }

References anisotropy_.

Member Data Documentation

anisotropy_

std::array<double, 3> oomph::AnisotropicHookean::anisotropy_ { 1.0, 1.0, 1.0 }

private

Referenced by calculate_second_piola_kirchhoff_stress(), and setAnisotropy().

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The documentation for this class was generated from the following file:

• AnisotropicHookean.h