Class for creating an area section for 3D analysis with linear elastic material for a shell elements.
More...
#include <Lin3DThinArea.hpp>
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Eigen::MatrixXd | GetLineRotationMatrix (double theta) |
| Gets Local Axis Rotation for Line Section according to provided angle. More...
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Eigen::MatrixXd | GetAreaRotationMatrix (double Theta) |
| Gets Local Axis Rotation for Area Section according to provided angle. More...
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Eigen::MatrixXd | GetLineTranslationMatrix (double h, double b, double zc, double yc, unsigned int ip) |
| Gets centroid translation axis for Line Section according to insertion point. More...
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void | InsertionPointCoordinates (double &x3, double &x2, double h, double b, double zc, double yc, unsigned int ip) |
| Gets the coordinate according to insertion point. More...
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Eigen::MatrixXd | ComputeLineLocalAxes (double h, double b, double zcm, double ycm, double angle, unsigned int ip) |
| Transforms generalised strain/stresses from Element to Section local coordinate. More...
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Class for creating an area section for 3D analysis with linear elastic material for a shell elements.
- See also
- Section.hpp
◆ Lin3DThinArea()
Lin3DThinArea::Lin3DThinArea |
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double |
t, |
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std::unique_ptr< Material > & |
material |
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) |
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◆ ~Lin3DThinArea()
Lin3DThinArea::~Lin3DThinArea |
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◆ CommitState()
void Lin3DThinArea::CommitState |
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virtual |
Perform converged section state update.
- Note
- This function sets the trail stress and strain as converged.
Implements Section.
◆ CopySection()
std::unique_ptr<Section> Lin3DThinArea::CopySection |
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◆ GetDensity()
Eigen::MatrixXd Lin3DThinArea::GetDensity |
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Access the section density matrix.
- Returns
- The section density matrix.
Implements Section.
◆ GetInitialTangentStiffness()
Eigen::MatrixXd Lin3DThinArea::GetInitialTangentStiffness |
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Returns the section initial stiffness matrix.
- Returns
- Matrix with the initial section tangent stiffness matrix.
- Note
- The initial tangent stiffness matrix is computed when the generalized strain vector is zero.
Implements Section.
◆ GetStrain()
Eigen::VectorXd Lin3DThinArea::GetStrain |
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virtual |
Returns the resultant (generalised) strain vector over the section.
- Returns
- Vector with the resultant strain components.
Implements Section.
◆ GetStrainAt()
Eigen::VectorXd Lin3DThinArea::GetStrainAt |
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double |
x3 = 0 , |
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double |
x2 = 0 |
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virtual |
Returns the section strain at given position.
- Parameters
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x3 | Position on the x3-axis where the strain is evaluated. |
x2 | Position on the x2-axis where the strain is evaluated. |
- Returns
- Vector with the strain components at coordinate (x3,x2).
Implements Section.
◆ GetStress()
Eigen::VectorXd Lin3DThinArea::GetStress |
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virtual |
Returns the resultant (generalised) stress vector over the section.
- Returns
- Vector with the resultant stress components.
Implements Section.
◆ GetStressAt()
Eigen::VectorXd Lin3DThinArea::GetStressAt |
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double |
x3 = 0 , |
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double |
x2 = 0 |
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virtual |
Returns the section stress at given position.
- Parameters
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x3 | Position on the x3-axis where the stress is evaluated. |
x2 | Position on the x2-axis where the stress is evaluated. |
- Returns
- Vector with the stress components at coordinate (x3,x2).
Implements Section.
◆ GetTangentStiffness()
Eigen::MatrixXd Lin3DThinArea::GetTangentStiffness |
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Returns the section stiffness matrix.
- Returns
- Matrix with the section consistent tangent stiffness matrix.
Implements Section.
◆ InitialState()
void Lin3DThinArea::InitialState |
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Brings the section states to its initial state.
- Note
- This function returns the material states to the beginning.
Implements Section.
◆ ReverseState()
void Lin3DThinArea::ReverseState |
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virtual |
Reverse the section states to previous converged state.
- Note
- This function returns the material states to previous converged states.
Implements Section.
◆ UpdateState()
void Lin3DThinArea::UpdateState |
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const Eigen::VectorXd |
strain, |
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const unsigned int |
cond |
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virtual |
Update the section state for this iteration.
- Parameters
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strain | Vector with the strain components at this Gauss-point. |
cond | If the the elastic/plastic material components will be updated. |
- Note
- This function computes the strain and tanget stiffness matrix once the trial strain converged.
Implements Section.
◆ Strain
Eigen::VectorXd Lin3DThinArea::Strain |
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private |
Generalized Strain vector.
◆ theMaterial
std::unique_ptr<Material> Lin3DThinArea::theMaterial |
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private |