Crash analyses was carried out to characterize crash behavior and injury of a wheelchair user in a train during collision based on SAFETRAIN PROJECT and AV/ST 9001, train safety regulations. There is no restraint system such as seat belt or air-bag in train, a wheelchair user is normally injured by bumping against wall. Crash behavior and injury of a wheelchair user was evaluated with respect to the distance (Dw) of the wheelchair from the wall and the wall foam thickness (tF). Additional crash analysis for a wheelchair user with seat belt was also performed in order to check the significance of the seat belt effect during crash.

FE analyses have been performed to characterize triaxiality of Eco-Al7021-T6, one of representative environmentally-friendly materials with lightweight effect, in this study. Also, a novel shape specimen with double notched and a central hole, i.e., DNC specimen, was suggested to obtain two different values of triaxiality from one trial simultaneously. Tensile tests for the standard type specimen were conducted and true stress-true strain relationship, as well as force-displacement curve were obtained. It was revealed that two different values of triaxiality were successfully achieved from the novel DNC specimen, and the number of tests for triaxiality can be reduced with the use of the DNC specimen.