CustomCDP.h

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/*******************************************************************************
 * Copyright (C) 2017-2023 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 CUSTOMCDP_H
#define CUSTOMCDP_H
 
#include "NonlinearCDP.h"
#include <Toolbox/Expression.h>
 
class CustomCDP final : public NonlinearCDP {
    const unsigned t_tag, c_tag;
 
    shared_ptr<Expression> t_expression, c_expression;
 
    [[nodiscard]] podarray<double> compute_tension_backbone(double) const override;
    [[nodiscard]] podarray<double> compute_compression_backbone(double) const override;
 
public:
    CustomCDP(unsigned, // tag
              unsigned, // tension expression tag
              unsigned, // compression expression tag
              double,   // elastic modulus
              double,   // poissons ratio
              double,   // normalized crack energy (+)
              double,   // normalized crush energy (+)
              double,   // dilatancy parameter
              double,   // biaxial compression strength ratio
              double,   // stiffness recovery
              double    // density
    );
 
    int initialize(const shared_ptr<DomainBase>&) override;
 
    unique_ptr<Material> get_copy() override;
};
 
#endif