Thickness property definition
- @THICKNESS_PROPERTY_DEFINITION {
- @THICKNESSES_PROPERTY_NAME {ThickPropName} {
- @Y_ENTRY {v1, ..., vnv}
- @TABLE_ENTRIES {
- @X_ENTRY {ui}
- @THICKNESSES {hi, 1, ..., hi, nv}
- }
- @COMMENTS {CommentText}
- }
- }
NOTES
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This section defines a distribution of thickness a surface. This thickness distribution is used for shell or membrane elements. Thicknesses will be defined at the nodes of a rectangular grid over the surface that defines the geometry of the shell or membrane. The u and v coordinates of this NURBS surface will be used to defined the grid points. At first, the number of grid points nu and nv along the u and v coordinates, respectively, are defined. Next, the nv grid points, v1, ..., vnv, along the v axis are defined. Note that v1 = 0.0, vnv = 1.0, and the intermediate values must appear in ascending order.
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The actual thickness table consists of the definition of the thicknesses along nu columns parallel to the v axis. Each column starts with the ui entry at which is is located, followed by the nv thicknesses at the nv grid points of this column. Note that u1 = 0.0, unu = 1.0, and the intermediate values must appear in ascending order. At any point on the surface, the thickness is linearly interpolated among the four closest grid points.
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It is possible to attach comments to the definition of the object; these comments have no effect on its definition.