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PDamping Command

The PDamping command adds external damping based on particle velocity during MPM calculations:

PDamping (alphaVsT)

where

You can refer to the OSUPDocs wiki for information on damping options, along with advice on selecting the right amount of damping. The process is basically trial and error, but some guidelines based on wave speed of the material are given.

Notes

  1. Alternative Damping Command, FeedbackDamping Command, and PFeedbackDamping Command provide additional damping options. These options can be used separately or in combination
  2. Individual materials can overide these settings to choose custom particle damping by using matDamping property.
  3. The PDamping command is only allowed for MPM analyses.