Validation of Finite Element Analysis Accuracy through Collision Test Using an Actual Railway Carbody Structure and a Dump Truck

Abstract

It is impractical to conduct collision tests with an actual train unit to design crash safety structures. Numerical simulation is effective, but it is important to validate its analytical accuracy. Therefore, the authors conducted a collision test of a full-scale partial stainless steel carbody structure of railway vehicle's lead car and a typical large dump truck. In addition to the test, FE analysis was conducted under the same conditions as the experimental test in order to compare numerical and experimental results, and this obtained agreement between both sets of results. Finally, using the FE analysis, the authors estimated the impact deformation and fracture behavior of the railway carbody under the actual level-crossing accident.