Bilinear2D.h

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/*******************************************************************************
 * Copyright (C) 2017-2022 Theodore Chang
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
#ifndef BILINEAR2D_H
#define BILINEAR2D_H
 
#include <Material/Material2D/Material2D.h>
#include <Material/Material3D/vonMises/BilinearJ2.h>
 
class Bilinear2D final : public Material2D {
    static const uvec F1, F2;
 
    const double elastic_modulus;
    const double poissons_ratio;
 
    vec current_full_strain;
    vec trial_full_strain;
 
    BilinearJ2 base;
 
    static mat form_stiffness(const mat&);
 
public:
    Bilinear2D(unsigned,                 // tag
               double,                   // elastic modulus
               double,                   // poisson's ratio
               double,                   // initial yield stress
               double,                   // hardening ratio
               double = 1.,              // isotropic (1.0) / kinematic (0.0) hardening factor
               PlaneType = PlaneType::S, // plane stress or plane strain
               double = 0.               // density
    );
 
    int initialize(const shared_ptr<DomainBase>&) override;
    void initialize_couple(const shared_ptr<DomainBase>&) override;
 
    [[nodiscard]] double get_parameter(ParameterType) const override;
 
    unique_ptr<Material> get_copy() override;
 
    int update_trial_status(const vec&) override;
 
    int clear_status() override;
    int commit_status() override;
    int reset_status() override;
 
    void print() override;
 
    vector<vec> record(OutputType) override;
};
 
#endif