Airbag Folding in Ansys LS-DYNA


This class introduces airbag folding and morphing strategies in LS-DYNA and LS-PrePost. We will present the operations of preprocessor-based airbag folding and simulation based airbag folding along with a step-by-step procedure to aid the implementation of these folding operations. We provide workshops demonstrating each stage of folding and morphing.

Learning Outcome

Upon the successful completion of this course, you will be able to:

  • Identify the appropriate folding methodology to be adopted for a given folding pattern.
  • Execute pre-processing folding operations using Airbag Folding toolbox, in LS-PrePost.
  • Develop model files and processes to execute simulation folding patterns in LS-DYNA, using DynFold toolbox in LS-PrePost.
  • Morph reference geometry of a 3D Passenger Airbag model, for deployment testing.
  • Morph curtain airbag models along roof-rail contours.


  • You should be fa­mil­iar with LS-DY­NA.
  • Familiarity with LS-PrePost will be useful, but not necessary to take advantage of the class.
  • An understanding of airbag folding operations would be helpful, but not necessary.

Target Audience: Any user interested in short duration analyses such as Drop test, Crashworthiness, Contact-Impact problem.

Teaching Method:The teaching method is simple and practical to reduce the barrier to learn advanced topics. The class relies on simple class-room introduction of advanced topics in simple and incremental way to make it easier to understand all topics

Learning Options: Training materials for this course are available with an Ansys Learning Hub Subscription. If there is no active public schedule available, private training can be arranged. Please contact us.



Topics Covered :

  • In­tro­duc­tion (1_INTRODUCTION)
  • Overview of Airbag Fold­ing Method­olo­gies
  • Ap­pli­ca­tions of Airbag Fold­ing
  • LS-Pre­Post (Pre-proces­sor) Based Airbag Fold­ing Method­ol­o­gy (2_ABFOLD)
    • AB­FOLD Tool­box
      • Thin Fold
      • Thick Fold
      • Tuck Fold
      • Spi­ral Fold
    • Airbag Ref­er­ence Geom­e­try Ver­i­fi­ca­tion & Mor­ph­ing Tools
    • Work­shop
  • LS-DY­NA (Sim­u­la­tion) Based Airbag Fold­ing Method­ol­o­gy (3_DYNFOLD & 4_PRACTICES)
    • Dyn­Fold Tool­box
      • SPC Tool
      • Load Mesh Tool
      • BPFG Tool
      • Stitch Tool
      • Tuck Tool
    • Sim­u­la­tion Fold­ing Mod­el­ing Prac­tices
    • Work­shop
  • Pas­sen­ger Airbag Mor­ph­ing (5_MORPH)
    • PAB Mor­ph­ing Tool­box
    • Work­shop
    • Ad­di­tion­al Mor­ph­ing Tools

Agenda :

This is a 2-day classroom course covering both lectures and workshops. For virtual training, this course is covered over 6 x 2-hour sessions lectures only.

Virtual Classroom Session 1 / Live Classroom Day 1

  • Module 1 – Introduction
  • Module 1 - Applications of Airbag Folding

Virtual Classroom Session 2 & 3 / Live Classroom Day 1

  • Module 2 - ABFOLD: LS-PrePost Air Bag Folding
  • Module 2 - ABFOLD Exercises

Virtual Classroom Session 3, 4 & 5 / Live Classroom Days 1 – 2

  • Module 3 - DYNFOLD: LS-DYNA Air Bag Folding Toolbox
  • Module 3 - DYNFOLD Exercises

Virtual Classroom Session 5 / Live Classroom Day 2

  • Module 4 - DYNFOLD Modeling Practices

Virtual Classroom Session 6 / Live Classroom Day 2

  • Module 5 - Passenger Air Bag Morphing Toolbox
  • Module 5 - 8 Line Morphing of Curtain Airbag
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