Description
Tetrahedron face.
Useful for visualization etc. When wrapped in a ChFieldElementLoadableSurface, this can be also used to apply UV loads of ChLoaderUVdistributed type, for example ChLoaderPressure if referencing the ChDomainDeformation, or Neumann boundary in general like imposed heat flow, etc. Corner nodes, obtainable with GetNode(), are in counterclockwise order seen from the outside.
#include <ChFieldElementTetrahedron4Face.h>
Public Member Functions | |
| ChFieldTetrahedron4Face (std::shared_ptr< ChFieldElementTetrahedron4 > element, char id) | |
| Construct the specified face (0 <= id <= 3) on the given hexahedral element. More... | |
| virtual unsigned int | GetNumNodes () override |
| Get the number of nodes used by this element. | |
| virtual std::shared_ptr< ChNodeFEAbase > | GetNode (unsigned int i) override |
| Access the nth node. | |
| virtual int | GetSpatialDimensions () const override |
| virtual void | ComputeN (const ChVector3d eta, ChRowVectorDynamic<> &N) override |
| Compute shape function for the face. More... | |
| virtual void | ComputedNde (const ChVector3d eta, ChMatrixDynamic<> &dNde) override |
| virtual double | ComputeJ (const ChVector3d eta, ChMatrix33d &J) override |
| Compute Jacobian J = dX/dη, and returns its determinant. More... | |
| virtual double | ComputeJinv (const ChVector3d eta, ChMatrix33d &Jinv) override |
| virtual int | GetNumQuadraturePointsForOrder (const int order) const override |
| virtual void | GetMaterialPointWeight (const int order, const int i, double &weight, ChVector3d &coords) const override |
| virtual bool | IsTriangleIntegrationCompatible () const override |
| virtual ChVector3d | ComputeNormal (const double U, const double V) override |
| Gets the normal to the surface at the parametric coordinate u,v. More... | |
 Public Member Functions inherited from chrono::fea::ChFieldElementSurface | |
| virtual int | GetManifoldDimensions () const override |
| Public Member Functions inherited from chrono::fea::ChFieldElement | |
| virtual void | ComputedNdX (const ChVector3d eta, ChMatrixDynamic<> &dNdX) |
| virtual int | GetQuadratureOrder () const |
| virtual void | SetQuadratureOrder (const int morder) |
| virtual int | GetNumMaterialPoints () const |
| virtual void | Update () |
| Update, called at least at each time step. More... | |
| virtual void | SetupInitial (ChSystem *system) |
| Initial setup (called once before start of simulation). More... | |
Additional Inherited Members | |
| Protected Attributes inherited from chrono::fea::ChFieldElement | |
| int | quadrature_order = 1 |
Constructor & Destructor Documentation
◆ ChFieldTetrahedron4Face()
|
inline |
Construct the specified face (0 <= id <= 3) on the given hexahedral element.
The face id is: id = 0 for face opposed to vertex 0 id = 1 for face opposed to vertex 1 id = 2 for face opposed to vertex 2 id = 3 for face opposed to vertex 3
Member Function Documentation
◆ ComputeJ()
|
inlineoverridevirtual |
Compute Jacobian J = dX/dη, and returns its determinant.
Compute Jacobian J = dX/deta, and returns its determinant.
It should be GetSpatialDimensions() x 2 = 3x2, but return as 3x3 by padding 3rd columns with auxiliary orthogonal column. FALLBACK default implementation; but if possible implement a faster ad hoc computation.
Reimplemented from chrono::fea::ChFieldElementSurface.
◆ ComputeN()
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inlineoverridevirtual |
Compute shape function for the face.
Note, only U,V of eta are used, assuming the two parametric coords of the face.
Implements chrono::fea::ChFieldElement.
◆ ComputeNormal()
|
inlineoverridevirtual |
Gets the normal to the surface at the parametric coordinate u,v.
Normal must be considered pointing outside in case the surface is a boundary to a volume.
Implements chrono::fea::ChFieldElementSurface.
The documentation for this class was generated from the following file:
- /builds/uwsbel/chrono/src/chrono/fea/ChFieldElementTetrahedron4Face.h
