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rAKA/src/model/phase_field/phasefields/phasefield_quadratic_inline_impl.hh
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phasefield_quadratic_inline_impl.hh
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#include "phasefield_quadratic.hh"
#include <algorithm>
namespace akantu {
inline void PhaseFieldQuadratic::computeDissipatedEnergyOnQuad(
const Real & dam, const Vector<Real> & grad_d, Real & edis,
Real & g_c_quad) {
edis = 0.;
for (auto i : arange(spatial_dimension)) {
edis += 0.5 * g_c_quad * this->l0 * grad_d[i] * grad_d[i];
}
edis += g_c_quad * dam * dam / (2. * this->l0);
}
/* -------------------------------------------------------------------------- */
inline void PhaseFieldQuadratic::computeDamageEnergyDensityOnQuad(
const Real & phi_quad, Real & dam_energy_quad, const Real & g_c_quad) {
dam_energy_quad = 2.0 * phi_quad + g_c_quad / this->l0;
}
/* -------------------------------------------------------------------------- */
inline void
PhaseFieldQuadratic::computePhiOnQuad(const Matrix<Real> & strain_quad,
Real & phi_quad, Real & phi_hist_quad) {
Real trace = strain_quad.trace();
Real trace_plus = std::max(Real(0.), trace);
Matrix<Real> strain_dev(spatial_dimension, spatial_dimension);
strain_dev = strain_quad -
trace / Real(spatial_dimension) *
Matrix<Real>::Identity(spatial_dimension, spatial_dimension);
Real kpa = this->lambda + 2. * this->mu / Real(spatial_dimension);
phi_quad = 0.5 * kpa * trace_plus * trace_plus +
this->mu * strain_dev.doubleDot(strain_dev);
}
/* -------------------------------------------------------------------------- */
inline void PhaseFieldQuadratic::computePhiIsotropicOnQuad(
const Matrix<Real> & strain_quad, Real & phi_quad, Real & phi_hist_quad) {
Real trace = strain_quad.trace();
phi_quad = 0.5 * this->lambda * trace * trace +
this->mu * strain_quad.doubleDot(strain_quad);
}
} // namespace akantu
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