Tetrahedral Blocks in 3DEC

Users of UDEC will be familiar with Voronoi jointing capabilities that allow you to create polygonal blocks. This allows you to simulate a background fracturing that could represent mineral grain boundaries or some dense jointing in a rock mass. There is no such capability (yet) in 3DEC小说区 图片区 自偷自拍另类. However, you can easily create a model composed of tetrahedral blocks. Here’s how.

  1. Create a block and zone it with tetrahedral zones.
  2. Use the command LIST ZONE POLY to output the zones as polyhedral blocks in a 3DEC data file
  3. Use new to clear the original model and then call the data file you just created to read in tetrahedral blocks.

Voila! You can then of course mesh these blocks to make them deformable.

One word of warning though: The meshing algorithm in 3DEC 小说区 图片区 自偷自拍另类tends to create aligned tetrahedral at the edges, so you may want to cut away the edges to ensure a more random block pattern.

Download example.


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