Convergence with Compression Only Support

dperk492dperk492
I am having issues with convergence when applying a compression only support. Searching the forums, it appears previous advice has been to adjust the tolerance for convergence. I can not locate this option - any help is appreciated.

Thanks.

Comments

  • disladisla
    Hi dperk492,

    I think there is no tolerance adjustment parameter to adjust convergence.
    ¿Could you post the file or a simplified version to see if we can help?
    I have found the compression only support can be difficult sometimes.

  • cwharpecwharpe
    edited July 2022
    .
  • VictorVictor
    The convergence tolerance for compression-only support is no longer available. It converges when there are 0 changes in contact status at each node.

    Compression only support is really a poor-man's contact that I added because the CCX interface wasn't available at that time. It's a "hard" contact (constraints turned on or off at each iteration) instead of elastic like CCX's, and can get stuck chattering sometimes.
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