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B-Pillar Intrusion and Velocity Sensitivity Study for Side Impact Load Case
Technical Paper
2011-28-0109
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In the early vehicle design stage math model, subsystems such as dummies, airbags and interior trims are generally not considered for structural evaluation. The objective of this study is to evaluate the B-pillar intrusion and velocity sensitivity in a side impact load case with respect to the dummies, airbags and interior trim.
In this study four different vehicles were used to understand the B-pillar intrusion and velocity sensitivity trends. US NCAP lateral impact load case is used in this study. Five side impact load case analyses iterations, with different combinations of subsystems, were completed.
Dummy inertia and interior trims play an important role for B-Pillar intrusion and velocity in side impact load case (USLINCAP). If the dummy and interior trim is not well defined in the CAE model, higher B-pillar intrusion and velocity will be predicted. This could vary from 10 to 25 %. Driver and passenger dummy's inertial effects are defined in the early design stage CAE math model. B-pillar intrusion and velocity variations were reduced up to 8% in the four vehicle models studied.
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Citation
Nayak, A., Ekhande, S., and Marella, M., "B-Pillar Intrusion and Velocity Sensitivity Study for Side Impact Load Case," SAE Technical Paper 2011-28-0109, 2011, https://doi.org/10.4271/2011-28-0109.Also In
References
- LS-DYNA 3D® Users Manual Livermore Software Technology Corp.
- Albers, W. Lehman, D. “Side-Impact Requirements in the USA and Europe - A Critical Comparison” 919 925 94-S6-O-02
- LS-DYNA® H-III Dummy Development (Detailed Deformable NCAC Dummy)
- National Highway Transportation & Safety Administration Federal Motor Vehicle Safety Standard # 214