The improvement of computer simulation technology allows car designers to evaluate injury risks of newly designed bumpers by using models of a car and TRL legform impactor. Since a medium density, open-celled polyurethane foam (confor(TM)) type CF45 of the Transport Research Laboratory (TRL) legform impactor is not a non-ferrous material, the material property of compression characteristics should be clarified for the development of highly reliable TRL legform impactor model. The stress-strain characteristics of CF45 having 25 mm in thickness were investigated under quasi-static compression conditions. The humidity conditions were set at RH20%, RH35%, RH50%, RH65% and RH80%. The effect of humidity on the stress-strain characteristics of CF45 was discussed considering the stiffness of stress-strain.
Effect of humidity on quasi-static characteristics of foam CF-45 for TRL pedestrian legform impactor
International Journal of Vehicle Safety (Online) ; 7 , 3/4 ; 440-449
2014
10 Seiten, Bilder, Tabellen, Quellen
Article (Journal)
English
Effect of humidity on quasi-static characteristics of foam CF45 for TRL pedestrian legform impactor
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