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A contact surface may be modeled using gap (compression-only) link objects and large-displacement time-history analysis. To demonstrate, the sequence of a sphere dropping onto a flexible deck is modeled as follows:

  • Use traditional modeling techniques to create a sphere and a deck.
  • Use a gap (compression-only) link to connect the sphere and the deck. The gap joints on each object, which will create the contact point upon impact, must align exactly. By using a gap link, the resultant deck displacement may be modeled.
  • When reviewing model results, do not display the links such that visuals appear as follows:


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