Experimental Consideration on Headform Impact Test for Pedestrian Protection

Paper #:
  • 930095

Published:
  • 1993-03-01
Citation:
Sakurai, M., Kobayashi, K., Ishikawa, H., Ono, K. et al., "Experimental Consideration on Headform Impact Test for Pedestrian Protection," SAE Technical Paper 930095, 1993, https://doi.org/10.4271/930095.
Pages:
10
Abstract:
Improvements for pedestrian head protection in a car-pedestrian accident have been discussed in several countries. Test methods for evaluating head protection have been proposed, and most are sub-systems using rigid headforms with or without headskin. In those tests, HIC is used as a criterion for head protection.This paper discusses the test conditions and requirements of the headform impact test. The influence of different test conditions and their importance on head impact test requirements, were verified. The primary items cited are as follows: (1) The results of the rigid headform were similar to that of the human cadaver skull in cases without skull fractures. Consequently, the rigid headform can be used for the impactor simulating a condition without skull fracture. (2) In the cases of HIC≤1000, the force-deformation curves of the hoodtops showed similar characteristics with maximum dynamic deformations over 60mm. (3) Impactor mass affected the maximum acceleration and HIC. Impactor mass appears to be an important factor in test conditions. (4) The test results with and without headskin (Hybrid-III) showed almost no difference in the maximum acceleration and the HIC. The presence of a headskin on the impactor is not an important factor in test conditions.
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