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Experimental Investigations and Finite Element Simulations on the Deformation Behavior and Failure Modes of a Grade 8.8 Alloy Steel
Mechanics of Solids ( IF 0.7 ) Pub Date : 2021-09-21 , DOI: 10.3103/s0025654421040129
Liu Yu 1, 2 , Jin Jian 1, 2 , Wang Yongfei 1, 2 , Yu Bo 3
Affiliation  

Abstract—

This work presents an experimental investigation and a finite element analysis on mechanical behavior, in particular, the deformation behavior, fatigue performance and failure modes of metallic materials such as a grade 8.8 alloy steel. First, the mechanical tests of the base alloys and their welded joint were conducted, and the stress-circulatio curve with a survival rate was obtained. Second, the failure modes and fracture mechanism of such metallic materials were analyzed. Third, the load spectrum of the key parts of a typical welding joint was converted into stress spectrum. Finally, the fatigue life of the parts was achieved based on the finite element analysis and corresponding numerical simulations. Therefore, the present study provides a very practical method, which can be applied in various industrial aspects such as materials and mechanical engineering as well as structural control and safety monitoring.



中文翻译:

8.8 级合金钢变形行为和失效模式的实验研究和有限元模拟

摘要-

这项工作对机械行为进行了实验研究和有限元分析,特别是金属材料(如 8.8 级合金钢)的变形行为、疲劳性能和失效模式。首先对基体合金及其焊接接头进行力学试验,得到应力循环曲线与存活率。其次,分析了此类金属材料的失效模式和断裂机制。第三,将典型焊接接头关键部位的载荷谱转化为应力谱。最后,通过有限元分析和相应的数值模拟计算得出零件的疲劳寿命。因此,本研究提供了一种非常实用的方法,

更新日期:2021-09-22
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