Abstract
FE analysis and static compression tests for real size carbodies of railway vehicles provided the compression load versus deformation characteristics of the end structures of rail-car bodies in order to evaluate crush behavior at train collision accidents. The load versus deformation curve by the FE analysis was introduced to the non-linear spring characteristics of a multi-body system (MBS) model, which was used to simulate the train crash behavior. The result by the MBS simulation shows the typical behavior of rakes, i.e. overriding phenomena of the vehicles involved in the collision and broken-down couplers between vehicles in the rake. Several different accident conditions in terms of the weight of an obstacle, train velocity, train formation and vehicle strength, varied the crash behavior of the colliding rake calculated by the MBS analysis.
