Joungsik Suh

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The simulation tips of DEFORM
Joungsik Suh NSMLAB, Sogang Uni. Tuesday, October
30, 2007
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• When program stops or negative jacobian is
  generated, go to the corresponding step or
  previous several steps.

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• Investigate the reason why the program stops.
  Generally, it is the reason that negative
  jacobian is generated. That is, element is
  deformed excessively.

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• Go to Gemetry part and find the node that element
  is deformed excessively.

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• You can choose several cases
• - Delete the corresponding node.
• - Insert new node coordinate.
• - Relocate the corresponding point.

relocate
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• If you finish correcting geometry, go to mesh.
• Select generate mesh, not manual remesh.
• After then, you should choose NO.

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• After remesh, you should go to Advanced.
• Select Data interpolation, just push Next and
  Finish.
• Confirm Element data whether data interpolation
  is well.
• Check other conditions and generate databse.
• Keep going simulation.