Biomechanical simulation of eye-airbag impacts during vehicle accidents

This study investigates risk of injury to eyes during airbag impacts. A finite element model was developed based on three-dimensional geometry of the eyeball and airbag. In addition, in vitro tests were conducted on animal samples to determine realistic properties of vitreous body and sclera for the model. Mechanical properties and material parameters for the FE model are presented. Stress and strain produced in different areas of the eye after eye-airbag impact are calculated. Higher stress at the end of impact is found with the sclera, ciliary body, cornea, lens, and tendon. The cornea experienced the highest strain. Reduced airbag pressure can reduce eye stresses during eye-airbag impact. A 25% airbag pressure reduction results in 21.4% less cornea stress.

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01680385
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 1 2018 5:19PM