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Impact analysis and node issue

- August 21, 2025 at 1:53 pm
  
  Raghav
  Subscriber
  
  Hi everyone,
  I am doing high velocity impact analysis on axisymmetrical model using MAT_110 for ceramic, MAT_22 for composite and MAT_15 for impactor.
  I have used 2D shell elements, with erosion criteria as MXEPS with hourglass 6 (QM = 0.2) for each part. For composite delamination, I am using constrained_tied_node_failure. Although my damage is coming as expected my results are not matching and nodes are also not maintaing proper contact. Please help me through simulation.
- August 29, 2025 at 8:44 am
  
  Dennis Chen
  Subscriber
  
  Hi, consider using part_stacked_elements for this type of high_number_of_layers composites. I know you want to do this in 2D but this feature allows you to use a single representative shell body to generate an arbitrary number of layers of solids/shells.
  very useful for this type of application I believe.
  may not directly answer your question but I hope it helps.

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