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Comparison for the test methods of fatigue life of welded structures

机译：焊接结构疲劳寿命试验方法的比较

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摘要

Taking the local parts of high-speed training service as the research object, the static form of the finite element model is established, and the dangerous parts of the stress distribution under different load form corresponding to loading and displacement conditions applied in experimental test is calculated. Fatigue life of the same welding parts of the different forms due to the state of the uniaxial tensile and the bending is respectively tested in the lab, the life distribution and characteristics of their statistics are obtained; Compared to the stress distribution of dangerous parts and data of the test, analysis that the similar parameters of life and failure forms can be received if it choose the reasonable load parameters in different form and loading in the test.
机译：将局部部分的高速训练服务作为研究对象，建立了有限元模型的静态形式，并计算了对应于在实验测试中应用的加载和位移条件下的不同载荷形式的应力分布的危险部分。由于单轴拉伸的状态和弯曲的状态，在实验室中测试了不同形式的相同焊接部分的疲劳寿命，获得统计统计的寿命分布和特性;与测试的危险部件和数据的压力分布相比，如果在测试中选择合理的负载参数并在测试中加载，则可以接收分析寿命和失效形式的类似参数。

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