The coupling phenomenon in the case of a frontal car crash

Faidy, Jean-Pierre

Affiliations

Abstract

Protection in the case of a frontal crash is directly related to the way the occupant is coupled with the decelerating vehicle.

Experimental data coming from car crashes carried out in a crash test facility are analysed, thus leading to an analytical formulation of the coupling phenomenon, which is studied by considering the chest deceleration. The link between the shape of the vehicle deceleration curve and this criterion is established, also taking into account belt slackness. The relative velocity of the dummy in the car right at the moment when coupling begins appears to be an important factor in determining chest deceleration.

A methodology is given that enables engineers to easily account for these results and thus to have guidelines for improving protection at the preliminary design stage of a car.

Links

DOI: 10.4271/952709

SAE: 952709

Cited Works (3)

Year	Entry
1976	Matsui S. A method of estimating the crashworthiness of body construction. In: Proceedings of the 6th International Technical Conference on Experimental Safety Vehicles (ESV). October 12-15, 1976; Washington, D.C.302-308.
1987	Matsushita K, Morita S. Relationship between vehicle front-end stiffness and dummy injury during collisions. In: Proceedings of the 11th International Technical Conference on Experimental Safety Vehicles (ESV). May 12-15, 1987; Washington, DC.529-537.
1982	Katoh H, Nakahama R. A study on the ride-down evaluation. In: Proceedings of the 9th International Technical Conference on Experimental Safety Vehicles (ESV). November 1-4, 1982; Kyoto, Japan.190-195.

Cited By (1)

Year	Entry
2015	Hardy WN, Howes MK, Kemper AR, Rouhana SW. Impact and injury response of the abdomen. In: Yoganandan N, Nahum AM, Melvin JW, eds. Accidental Injury: Biomechanics and Prevention. 3rd ed. New York: Springer; 2015:373-434.