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rAKA/src/model/solid_mechanics/materials/weight_functions/stress_based_weight_function_inline_impl.hh
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stress_based_weight_function_inline_impl.hh
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/**
* @file stress_based_weight_function_inline_impl.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Cyprien Wolff <cyprien.wolff@epfl.ch>
*
* @date creation: Fri Apr 13 2012
* @date last modification: Wed Feb 03 2016
*
* @brief Implementation of inline function of remove damaged with
* damage rate weight function
*
*
* Copyright (©) 2010-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "stress_based_weight_function.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
inline void StressBasedWeightFunction::updateInternals() {
// updatePrincipalStress(_not_ghost);
// updatePrincipalStress(_ghost);
}
/* -------------------------------------------------------------------------- */
// inline void StressBasedWeightFunction::selectType(ElementType type1,
// GhostType ghost_type1,
// ElementType type2,
// GhostType ghost_type2) {
// selected_stress_diag = &stress_diag(type2, ghost_type2);
// selected_stress_base = &stress_base(type2, ghost_type2);
// selected_characteristic_size = &characteristic_size(type1, ghost_type1);
// }
/* -------------------------------------------------------------------------- */
inline Real StressBasedWeightFunction::computeRhoSquare(
__attribute__((unused)) Real r, __attribute__((unused)) Vector<Real> & eigs,
__attribute__((unused)) Matrix<Real> & eigenvects,
__attribute__((unused)) Vector<Real> & x_s) {
// if (spatial_dimension == 1)
// return eigs[0];
// else if (spatial_dimension == 2) {
// Vector<Real> u1(eigenvects.storage(), 2);
// Real cos_t = x_s.dot(u1) / (x_s.norm() * u1.norm());
// Real cos_t_2;
// Real sin_t_2;
// Real sigma1_2 = eigs[0]*eigs[0];
// Real sigma2_2 = eigs[1]*eigs[1];
// #ifdef __trick__
// Real zero = std::numeric_limits<Real>::epsilon();
// if(std::abs(cos_t) < zero) {
// cos_t_2 = 0;
// sin_t_2 = 1;
// } else {
// cos_t_2 = cos_t * cos_t;
// sin_t_2 = (1 - cos_t_2);
// }
// Real rhop1 = std::max(0., cos_t_2 / sigma1_2);
// Real rhop2 = std::max(0., sin_t_2 / sigma2_2);
// #else
// cos_t_2 = cos_t * cos_t;
// sin_t_2 = (1 - cos_t_2);
// Real rhop1 = cos_t_2 / sigma1_2;
// Real rhop2 = sin_t_2 / sigma2_2;
// #endif
// return 1./ (rhop1 + rhop2);
// } else if (spatial_dimension == 3) {
// Vector<Real> u1(eigenvects.storage() + 0*3, 3);
// //Vector<Real> u2(eigenvects.storage() + 1*3, 3);
// Vector<Real> u3(eigenvects.storage() + 2*3, 3);
// Real zero = std::numeric_limits<Real>::epsilon();
// Vector<Real> tmp(3);
// tmp.crossProduct(x_s, u3);
// Vector<Real> u3_C_x_s_C_u3(3);
// u3_C_x_s_C_u3.crossProduct(u3, tmp);
// Real norm_u3_C_x_s_C_u3 = u3_C_x_s_C_u3.norm();
// Real cos_t = 0.;
// if(std::abs(norm_u3_C_x_s_C_u3) > zero) {
// Real inv_norm_u3_C_x_s_C_u3 = 1. / norm_u3_C_x_s_C_u3;
// cos_t = u1.dot(u3_C_x_s_C_u3) * inv_norm_u3_C_x_s_C_u3;
// }
// Real cos_p = u3.dot(x_s) / r;
// Real cos_t_2;
// Real sin_t_2;
// Real cos_p_2;
// Real sin_p_2;
// Real sigma1_2 = eigs[0]*eigs[0];
// Real sigma2_2 = eigs[1]*eigs[1];
// Real sigma3_2 = eigs[2]*eigs[2];
// #ifdef __trick__
// if(std::abs(cos_t) < zero) {
// cos_t_2 = 0;
// sin_t_2 = 1;
// } else {
// cos_t_2 = cos_t * cos_t;
// sin_t_2 = (1 - cos_t_2);
// }
// if(std::abs(cos_p) < zero) {
// cos_p_2 = 0;
// sin_p_2 = 1;
// } else {
// cos_p_2 = cos_p * cos_p;
// sin_p_2 = (1 - cos_p_2);
// }
// Real rhop1 = std::max(0., sin_p_2 * cos_t_2 / sigma1_2);
// Real rhop2 = std::max(0., sin_p_2 * sin_t_2 / sigma2_2);
// Real rhop3 = std::max(0., cos_p_2 / sigma3_2);
// #else
// cos_t_2 = cos_t * cos_t;
// sin_t_2 = (1 - cos_t_2);
// cos_p_2 = cos_p * cos_p;
// sin_p_2 = (1 - cos_p_2);
// Real rhop1 = sin_p_2 * cos_t_2 / sigma1_2;
// Real rhop2 = sin_p_2 * sin_t_2 / sigma2_2;
// Real rhop3 = cos_p_2 / sigma3_2;
// #endif
// return 1./ (rhop1 + rhop2 + rhop3);
// }
return 0.;
}
/* -------------------------------------------------------------------------- */
inline Real StressBasedWeightFunction::operator()(__attribute__((unused))
Real r,
__attribute__((unused))
const IntegrationPoint & q1,
__attribute__((unused))
const IntegrationPoint & q2) {
// Real zero = std::numeric_limits<Real>::epsilon();
// if(r < zero) return 1.; // means x and s are the same points
// const Vector<Real> & x = q1.getPosition();
// const Vector<Real> & s = q2.getPosition();
// Vector<Real> eigs =
// selected_stress_diag->begin(spatial_dimension)[q2.global_num];
// Matrix<Real> eigenvects =
// selected_stress_base->begin(spatial_dimension,
// spatial_dimension)[q2.global_num];
// Real min_rho_lc = selected_characteristic_size->begin()[q1.global_num];
// Vector<Real> x_s(spatial_dimension);
// x_s = x;
// x_s -= s;
// Real rho_2 = computeRhoSquare(r, eigs, eigenvects, x_s);
// Real rho_lc_2 = std::max(this->R2 * rho_2, min_rho_lc*min_rho_lc);
// // Real w = std::max(0., 1. - r*r / rho_lc_2);
// // w = w*w;
// Real w = exp(- 2*2*r*r / rho_lc_2);
// return w;
return 0.;
}
} // namespace akantu
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