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AutoFEM Analysis Mesh |  |
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AutoFEM Analysis Mesh | |
Creating a finite element mesh for the design is one of the important and responsible stages of the finite element modelling.
AutoFEM Analysis uses two types of finite element meshes for calculation:
1. Volumetric finite-element mesh is based on tetrahedrons. There are two types of tetrahedral finite elements used in the AutoFEM. Both of them are straight-edged finite elements. The first one has nodes only at vertices, while the second one has intermediate nodes at the middle points of the edges (see the picture). Thus, tetrahedrons contain 4 or 10 nodes.
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4-node straight-edged tetrahedral finite element (linear tetrahedron) |
10-node straight-edged tetrahedral finite element (quadratic tetrahedron) |
2. Surface finite-element mesh is based on triangular finite elements
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3-node triangular finite element (linear triangle) |
6-node triangular finite element (quadratic triangle) |
The type of the mesh is defined by the type of study which is being selected while creating the study.
The following chapters describe the role of grids in the modelling and the process of creating the grid.
•Creating the finite-element mesh
