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随着车辆速度的提升,为测定车身材料的强度特性而进行的拉伸及压缩试验的测试难度也随之增大。对测试数据的重现也存在问题。针对这些问题,在本研究中选用3种铁道车辆用铝合金5083-O,6N01-T5,7N01-T5的母材及焊接部分作为对象,对其耐力、拉伸强度的应变速度依存性等动态材料特
As vehicle speeds increase, testing for tensile and compression tests to determine the strength characteristics of body materials also increases. Reproduction of test data is also problematic. In order to solve these problems, three kinds of base metal and welded parts of aluminum alloy 5083-O, 6N01-T5 and 7N01-T5 for railway vehicles were selected as the research object, and their dynamic endurance and strain rate dependence of tensile strength Material special