In order to verify the feasibility of high strength alloy A588-A as a crush box material,based on the analysis of the material characteristics of high strength alloy A588-A,tensile samples of high strength alloy A588-A were made according to the requirements of American standard,and quasi-static tests were carried out.The finite element models were built and the simulation calculation was carried out,to acquire the accurate mechanics characteristics.The finite element model of high strength alloy A588-A specimen and the three-dimensional model and finite element model of the components and assemblies of the crush box were built.The simulation calculation of the crash box was carried out,and the comparison was made with the physical crash test.The results show that the crush box made of high strength alloy A588-A as the material has excellent crashworthiness performance:the absorbed energy is up to 2.06 MJ at the crash speed of 33 km·h-1,and high strength alloy A588-A can be used as the preferred material for crush boxes of high-speed and heavy-haul rail vehicles.The simulation results of crash simulation highly match with results of the physical crash test,and the design scheme can be effectively verified with crash simulation.
关键词
高强钢A588-A材料/吸能盒/碰撞性能/仿真/试验/可行性研究
Key words
High strength alloy A588-A material/Crush box/Crashworthiness/Simulation/Test/Feasibility research
维普
万方数据