Within the Shrink Wrap panel there is an option to generate solid mesh – this will produce an all-hexa or all-tetra mesh based on the selected elements or geometry. The shrink wrap can thus be used as a quick mechanism to generate solid meshes.

Using the shrink wrap mesh to achieve improved FE output from OptiStruct topology runs has also provided very good results which allow for quick tetra-meshing and, therefore, quick re-analysis after the optimization run.

 

Comparing the Effects of Altering the Jacobian Value for Solid Mesh Generation:

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Within both tight and loose wrap algorithm’s there is an option to generate solid mesh. This will generate an all hexa mesh on completion of the shrink wrap. When the generate solid mesh check box is selected it will expose a minimum jacobian input, this option essentially will hexa mesh the part with this element quality critieria defined, it controls the hexa quality which is directly linked to the adherence to the topological features of the original component. The jacobian value must be between 0 and 1. The nearer the value is to 1 the cruder the output will appear, the mesh will be more heavily voxelised. When the value is closer to 0, you are allowing the shrink wrap solid mesh algorithm to smooth and adhere to more features while maintaining the solid mesh minimum jacobian element quality.  By default the minimum jacobian value is 0.3.

 

 

See Also:

Shrink Wrap Meshing