Development of a biofidelic flexible pedestrian legform impactor.

Author(s)
Konosu, A. & Tanahashi, M.
Year
Abstract

The European Enhanced Vehicle-Safety Committee (EEVC) has proposed a test procedure to assess the protection vehicles provide to the lower extremity of pedestrians during a collision. This procedure utilizes a legform impactor developed by the Transport Research Laboratory (TRL). However, the TRL Pedestrian Legform Impactor (TRL-PLI) is composed of rigid long bones ( cannot simulate the bone flexibility of the human) and rather stiff knee joint. The differences lead to a lack of biofidelity of the TRL-PLI, i.e. unnaturally stiff responses are observed. This study develops a biofidelic Flexible Pedestrian Legform Impactor (Flex-PLI) that can simulate human bone flexibility and human knee joint stiffness properly. The Flex-PLI can also measure many of the injury parameters, long bone strains at multiple locations, knee ligament elongations, and the compression forces between the femoral condyles and tibial plateau in comparison to the TRL-PLI. This paper presents the detailed specifications and measurement systems of the Flex-PLI, and also describes the results of biofidelity evaluation for the thigh, leg, and knee joint of the Flex-PLI in component level. (Author/publisher)

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Publication

Library number
20042032 t ST (In: ST 20042032 [electronic version only])
Source

In: Stapp Car Crash Journal Volume 47 : papers presented at the 47th Stapp Car Crash Conference, San Diego, California, USA, October 2003, Technical Paper 2003-22-0020, p. 459-472, 13 ref.

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