KOKO\Mimi
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
#pragma once
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#include "fesa/core/status.hpp"
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#include "fesa/math/matrix.hpp"
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#include "fesa/math/vector.hpp"
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#include "fesa/model/model_types.hpp"
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#include <array>
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#include <cstddef>
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#include <string>
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#include <vector>
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namespace fesa {
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struct ConstantLocalLineLoad {
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double px;
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double py;
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double pz;
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double mx;
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};
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struct BeamStressPoint {
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int gaussPoint;
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std::size_t sectionPoint;
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double x1;
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double x2;
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double s11;
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std::string source;
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};
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struct BeamRecovery {
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std::array<std::array<double, 6>, 2> equilibriumEndActions;
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std::array<std::array<double, 4>, 2> endpointSectionResultants;
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std::array<std::array<double, 4>, 2> gaussGeneralizedStrains;
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std::array<std::array<double, 4>, 2> gaussGeneralizedResultants;
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std::vector<BeamStressPoint> stressPoints;
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};
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// Implements the approved two-node straight prismatic B33 Euler-Bernoulli
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// kernel. Equation numbering and element identity remain outside this type.
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class EulerBeam3D {
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public:
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static Result<EulerBeam3D> create(const Node& firstNode,
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const Node& secondNode,
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const GeneralBeamSection& section,
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const LinearElasticMaterial& material);
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Matrix localStiffness() const;
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Matrix globalStiffness() const;
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Vector localEquivalentLoad(const ConstantLocalLineLoad& load) const;
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BeamRecovery recover(const Vector& globalElementDisplacement) const;
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private:
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EulerBeam3D(double length,
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double youngsModulus,
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double shearModulus,
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double area,
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double iy,
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double iz,
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double torsionalConstant,
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std::array<double, 9> rotation,
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std::vector<std::array<double, 2>> sectionPoints);
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double length_;
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double youngsModulus_;
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double shearModulus_;
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double area_;
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double iy_;
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double iz_;
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double torsionalConstant_;
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std::array<double, 9> rotation_;
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std::vector<std::array<double, 2>> sectionPoints_;
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};
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} // namespace fesa
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