抄録
Recently, many researches about vehicle dynamics analysis under unusual condition like derailment and impact to an obstacle are increasing. In these conditions, longitudinal force applied to a car frame may exceed design load. In this paper, longitudinal strength of a railway vehicle at intermediate end in consideration of plastic deformation is evaluated. As a result, it is clarified that the existing vehicle structure has much larger longitudinal crippling strength than elastic strength defined in a standard. In addition, an effect of dynamics to longitudinal strength and a crippling area is evaluated.
