Influence on cervical vertebral motion of the interaction between occiput and head restraint/seat based on the reconstruction of rear-end collision using finite element human model

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Sato, Fusako¹; Antona, Jacobo¹; Ejima, Susumu¹; Ono, Koshiro¹

Influence on cervical vertebral motion of the interaction between occiput and head restraint/seat based on the reconstruction of rear-end collision using finite element human model

Proceedings of the 2010 International IRCOBI Conference on the Biomechanics of Impact

Affiliations

¹Japan Automobile Research Institute
Abstract and keywords

A human FE model for rear-end accident analyses was developed in order to reconstruct not only the whole body motion but also vertebra motions during impact. The validation of the human FE model was confirmed as follows; The original model was validated against data obtained from human volunteer testing during low-speed rear-end impacts in the past. This model was further validated by PMHS at a high speed. This comparison showed that the human FE model could reconstruct the whole body and cervical vertebral motions of the PMHS. Furthermore rear-end accident reconstruction simulations were conducted with the human FE model. The simulations correlated the strains of the inter-vertebral discs and the facet joint capsules, with that of the neck injury severity recorded in the accident data.

Keywords: Rear Impacts; Finite Element Method; Neck Injury; Cervical Vertebral Motion

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Year	Entry
2017	Dokko Y, Tobaru S, Ohashi K. An evaluation method of cervical spinal injury for car passenger in dynamic rollover using a human FE model. In: Proceedings of the 25th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 5-8, 2017; Detroit, MI.
2012	Nakajima T, Yamazaki K, Ono K, Kadotani Y, Sawada M. Calibration test method for enhancing the BioRID‐II dummy’s repeatability and reproducibility. In: Proceedings of the 2012 International IRCOBI Conference on the Biomechanics of Injury. September 12-14, 2012; Dublin, Ireland.540-651.
2016	Sato F, Odani M, Miyazaki Y, Nakajima T, Antona Makoshi J, Yamazaki K, Ono K, Svensson M, Östh J, Morikawa S, Schick S, Perez AF. Investigation of whole spine alignment patterns in automotive seated posture using upright open MRI systems. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.113-130.