MVLEM.h

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/*******************************************************************************
 * Copyright (C) 2017-2024 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 MVLEM_H
#define MVLEM_H
 
#include <Element/MaterialElement.h>
 
class MVLEM final : public MaterialElement1D {
    struct Fibre final {
        double eccentricity = 0., width, height, c_area, s_area;
        unique_ptr<Material> c_material, s_material;
        Fibre(double, double, double);
    };
 
    static constexpr unsigned b_node = 2, b_dof = 3, b_size = b_dof * b_node;
 
    double shear_height;
    double length = 0.;
    double shear_height_a = 0.;
    double shear_height_b = 0.;
    double total_area = 0.;
 
    mat trans_mat;
 
    vector<Fibre> axial_spring;
 
    const unsigned shear_spring_tag;
 
    unique_ptr<Material> shear_spring;
 
public:
    MVLEM(
        unsigned,              // tag
        uvec&&,                // node tag
        const vector<double>&, // width
        const vector<double>&, // thickness
        const vector<double>&, // reinforcement ratio
        uvec&&,                // concrete material tags
        uvec&&,                // steel material tags
        unsigned,              // shear spring tag
        double                 // shear spring height
    );
 
    int initialize(const shared_ptr<DomainBase>&) override;
 
    int update_status() override;
 
    int commit_status() override;
    int clear_status() override;
    int reset_status() override;
 
    vector<vec> record(OutputType) override;
 
    void print() override;
 
#ifdef SUANPAN_VTK
    void Setup() override;
    void GetData(vtkSmartPointer<vtkDoubleArray>&, OutputType) override;
    void SetDeformation(vtkSmartPointer<vtkPoints>&, double) override;
#endif
};
 
#endif