Effect of Dual Lap Belt Load-Limiters in Reclined Frontal Impact Sled Tests with PMHS of Varying Anthropometry and Sex

Authors: Jeesoo Shin, Rachel Newman, John Paul Donlon, Sara Sochor, Bronislaw Gepner, Jason Kerrigan, University of Virginia; Martin Ӧstling, Krystoffer Mroz, Autoliv Development AB, Sweden

Abstract

Three frontal impact sled tests were conducted on postmortem human subjects of varying sex and anthropometry (mid-size female, mid-size male, and obese male) seated in a reclined posture. The subjects were restrained by a prototype seatbelt featuring dual lap belt load-limiters. Compared to previous studies, the mid-size female and male subjects, despite no submarining, experienced greater forward pelvis and lumbar spine excursions and differences in sagittal plane head trajectories but similar injuries. This work also provides novel kinetic, kinematic, and injury response data for an obese occupant subject to a reclined frontal impact sled test with dual lap belt load-limiters. Future work will provide expanded kinetic and kinematic response data obtained from these lap belt load-limited reclined sled tests.

Type: Short Communication

© Stapp Car Crash Conference, 2025

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