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Airbag Modeling in LS-DYNA®


  • Amit Nair

Airbag Modeling in LS-DYNA®


You should be fa­mil­iar with LS-DY­NA.


This class will in­tro­duce airbag mod­el­ing us­ing LS-DY­NA. We will dis­cuss mesh gen­er­a­tion, fab­ric mod­el­ing, con­trol vol­umes, par­ti­cle bags, and post-pro­cess­ing. This class in­cludes ex­er­cis­es to fa­mil­iar­ize you with the tech­niques.


Day 1

  • In­tro­duc­tion
    • Mesh gen­er­a­tion
    • Con­trol vol­umes
    • Fab­ric mod­el­ing
  • Airbag con­tacts
    • Mul­ti-cham­bers
    • Vent­ing
  • Par­ti­cle bags in­tro­duc­tion

Day 2

  • Tank tests and gas mod­el­ing gas be­hav­ior
  • Airbag be­hav­ior con­trol
    • Teth­ers
    • Mor­ph­ing
    • Units used
  • New CPM de­vel­op­ments and us­age
  • Pros and cons of us­ing CPM

Examples & Exercises

  • Mesh gen­er­a­tion
  • Airbag hy­brid
  • Jet­ting and mul­ti-cham­bers
  • Par­ti­cle bag
  • Vent­ing
  • Ref­er­ence geom­e­try
  • Mor­ph­ing bags
  • Teth­er
  • De­formable to rigid