structural_transient_assembly.cpp

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/*
 * MAST: Multidisciplinary-design Adaptation and Sensitivity Toolkit
 * Copyright (C) 2013-2019  Manav Bhatia
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */


// MAST includes
#include "elasticity/structural_transient_assembly.h"
#include "elasticity/structural_element_base.h"
#include "property_cards/element_property_card_1D.h"
#include "base/physics_discipline_base.h"
#include "base/assembly_base.h"
#include "mesh/geom_elem.h"


MAST::StructuralTransientAssemblyElemOperations::
StructuralTransientAssemblyElemOperations():
MAST::TransientAssemblyElemOperations() {
    
}




MAST::StructuralTransientAssemblyElemOperations::
~StructuralTransientAssemblyElemOperations() {
    
}



void
MAST::StructuralTransientAssemblyElemOperations::
elem_calculations(bool if_jac,
                  RealVectorX& f_m,
                  RealVectorX& f_x,
                  RealMatrixX& f_m_jac_xdot,
                  RealMatrixX& f_m_jac,
                  RealMatrixX& f_x_jac) {
    
    libmesh_assert(_physics_elem);
    
    MAST::StructuralElementBase& e =
    dynamic_cast<MAST::StructuralElementBase&>(*_physics_elem);
    
    f_m.setZero();
    f_x.setZero();
    f_m_jac_xdot.setZero();
    f_m_jac.setZero();
    f_x_jac.setZero();
    
    // assembly of the flux terms
    e.internal_residual(if_jac, f_x, f_x_jac);
    e.side_external_residual(if_jac,
                             f_x,
                             f_m_jac_xdot,
                             f_x_jac,
                             _discipline->side_loads());
    e.volume_external_residual(if_jac,
                               f_x,
                               f_m_jac_xdot,
                               f_x_jac,
                               _discipline->volume_loads());
    
    //assembly of the capacitance term
    e.damping_residual(if_jac, f_m, f_m_jac_xdot, f_m_jac);
}




void
MAST::StructuralTransientAssemblyElemOperations::
elem_calculations(bool if_jac,
                  RealVectorX& f_m,
                  RealVectorX& f_x,
                  RealMatrixX& f_m_jac_xddot,
                  RealMatrixX& f_m_jac_xdot,
                  RealMatrixX& f_m_jac,
                  RealMatrixX& f_x_jac_xdot,
                  RealMatrixX& f_x_jac) {
    
    libmesh_assert(_physics_elem);

    MAST::StructuralElementBase& e =
    dynamic_cast<MAST::StructuralElementBase&>(*_physics_elem);
    
    f_m.setZero();
    f_x.setZero();
    f_m_jac_xddot.setZero();
    f_m_jac_xdot.setZero();
    f_m_jac.setZero();
    f_x_jac_xdot.setZero();
    f_x_jac.setZero();
    
    // assembly of the flux terms
    e.internal_residual(if_jac, f_x, f_x_jac);
    e.damping_residual(if_jac, f_x, f_x_jac_xdot, f_x_jac);
    e.side_external_residual(if_jac,
                             f_x,
                             f_m_jac_xdot,
                             f_x_jac,
                             _discipline->side_loads());
    e.volume_external_residual(if_jac,
                               f_x,
                               f_m_jac_xdot,
                               f_x_jac,
                               _discipline->volume_loads());
    
    //assembly of the capacitance term
    e.inertial_residual(if_jac, f_m, f_m_jac_xddot, f_m_jac_xdot, f_m_jac);
}



void
MAST::StructuralTransientAssemblyElemOperations::
linearized_jacobian_solution_product(RealVectorX& f) {
    
    libmesh_assert(_physics_elem);

    MAST::StructuralElementBase& e =
    dynamic_cast<MAST::StructuralElementBase&>(*_physics_elem);
    
    const unsigned int
    n = (unsigned int) f.size();
    
    RealMatrixX
    dummy = RealMatrixX::Zero(n, n);
    
    f.setZero();
    
    // assembly of the flux terms
    e.linearized_internal_residual(false, f, dummy);
    //e.linearized_damping_residual(false, f, dummy, dummy);
    e.linearized_side_external_residual(false,
                                        f,
                                        dummy,
                                        dummy,
                                        _discipline->side_loads());
    e.linearized_volume_external_residual(false,
                                          f,
                                          dummy,
                                          dummy,
                                          _discipline->volume_loads());
    
    //assembly of the capacitance term
    e.linearized_inertial_residual(false, f, dummy, dummy, dummy);
}




void
MAST::StructuralTransientAssemblyElemOperations::
elem_sensitivity_calculations(const MAST::FunctionBase& f,
                              RealVectorX& f_m,
                              RealVectorX& f_x) {
    
    libmesh_assert(_physics_elem);
    
    MAST::StructuralElementBase& e =
    dynamic_cast<MAST::StructuralElementBase&>(*_physics_elem);
    
    unsigned int
    n       =  (unsigned int)f_m.size();
    
    RealMatrixX
    dummy   =  RealMatrixX::Zero(n, n);
    
    f_m.setZero();
    f_x.setZero();
    
    // assembly of the flux terms
    e.internal_residual_sensitivity(f, false, f_x, dummy);
    e.damping_residual_sensitivity(f, false, f_x, dummy, dummy);
    e.side_external_residual_sensitivity(f, false,
                                         f_x,
                                         dummy,
                                         dummy,
                                         _discipline->side_loads());
    e.volume_external_residual_sensitivity(f, false,
                                           f_x,
                                           dummy,
                                           dummy,
                                           _discipline->volume_loads());
    
    //assembly of the capacitance term
    e.inertial_residual_sensitivity(f, false, f_m, dummy, dummy, dummy);
}



void
MAST::StructuralTransientAssemblyElemOperations::
elem_second_derivative_dot_solution_assembly(RealMatrixX& m) {
    
    libmesh_error(); // to be implemented
}


void
MAST::StructuralTransientAssemblyElemOperations::
set_elem_data(unsigned int dim,
              const libMesh::Elem& ref_elem,
              MAST::GeomElem& elem) const {
    
    libmesh_assert(!_physics_elem);
    
    if (dim == 1) {
        
        const MAST::ElementPropertyCard1D& p =
        dynamic_cast<const MAST::ElementPropertyCard1D&>(_discipline->get_property_card(ref_elem));
        
        elem.set_local_y_vector(p.y_vector());
    }
}


void
MAST::StructuralTransientAssemblyElemOperations::init(const MAST::GeomElem& elem) {

    libmesh_assert(!_physics_elem);
    libmesh_assert(_system);
    libmesh_assert(_assembly);

    const MAST::ElementPropertyCardBase& p =
    dynamic_cast<const MAST::ElementPropertyCardBase&>(_discipline->get_property_card(elem));
    
    _physics_elem =
    MAST::build_structural_element(*_system, *_assembly, elem, p).release();
}