Modeling the seat belt to shoulder-complex interaction in far-side crashes

The aim of this study was to investigate seat belt to shoulder-complex interaction during the first phase of a farside impact for incorporation into a multibody occupant model. The model adaptations were derived based on quasistatic belt slip tests using two volunteers, a standard Hybrid III ATD and a Hybrid III Spring-Spine ATD. The model development was validated for this first phase of impact by comparison with shoulder belt force-time histories and head lateral displacements from lateral far-side sled tests using PMHS and a WorldSID ATD. The newly adapted model correctly predicted seat belt to shoulder complex interaction in all of the quasi-static belt slip tests, compared to 50 per cent and 67 per cent for Hybrid III and Hybrid III Spring-Spine respectively. Furthermore, the model was able to predict the increasing likelihood of the seat belt engaging the shoulder when the D-ring moved rearward and pretension increased. For the validation tests, the magnitude and phasing of the shoulder-belt force-time and head displacement-time histories were generally within 10 per cent of the PMHS results. In addition, the model was capable of predicting the location of occupant to seat belt interaction observed in the PMHS tests.

Language

  • English

Media Info

  • Pagination: 11p
  • Monograph Title: 20th International Technical Conference on the Enhanced Safety of Vehicles (ESV)

Subject/Index Terms

Filing Info

  • Accession Number: 01387327
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 22 2012 10:20PM