Foam Model for Explicit Dynamics

- August 22, 2019 at 6:25 am
  
  HammadShaikh18
  Subscriber
  
  Hello all,
  
  I am currently working dynamic analysis to study performance of motorcycle helmet which uses EPP as a liner. Since most of the research are done using LS-DYNA. I have found limited knowledge to model the material behaviour of EPP in ANSYS Explicit Dynamics. What model is suitable for his analysis and the material data needed for my simulation.
- September 16, 2020 at 2:53 pm
  
  Arafat_Liverpool
  Subscriber
  
  What is EPP?n
- September 16, 2020 at 7:34 pm
  
  Mike Rife
  Ansys Employee
  
  ArrayA good place to start is https://www.dynalook.com/and search the papers of all the prior LSTC LS-Dyna conferences. There is a nice paper on choosing the appropriate foam material model, though it does not address EPP directly. As far as the material data...do you have access to testing equipment? There is a whole world of materials with respect to EPP (different manufacturers, fillers, etc).nnArrayEPP = Expanded Polypropylene I believe. n

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