Numerical simulation and experimental investigation of the aluminum alloy quenching-induced residual stress by considering the flow stress characteristic

被引：0
|
作者：
Zhu C. [1 ]
Luo J. [1 ]
Li D. [1 ]
Zhong Y. [1 ,2 ]
Li Y. [1 ,2 ]
机构：
[1] State Key Laboratory of Mechanical Transmission, Chongqing University
[2] Southwest Aluminum (Group) Co., Ltd.
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2010年 / 46卷 / 22期
关键词：
Aluminum alloy; Direct coupling; Flow stress; Numerical simulation; Quenching;
D O I：
10.3901/JME.2010.22.041
中图分类号：
学科分类号：
摘要：
Direct thermo-mechanical coupled numerical simulation of the temperature field, as well as the stress field during the quenching process of the 7075 aluminum alloy plate is performed by introducing the flow stress characteristic of the aluminum alloy. Distributing rules of the quenching-induced residual stress is discussed. Compared with relevant experimental results, it shows close agreement with practical condition. Final quenching-induced residual stress level between the two numerical simulations, direct coupling and quasi coupling, is compared by using experimental results in relevant documents, which shows the direct coupling method has better accuracy. The non-monotonic distributing rule of the quenching-induced residual stress in the thickness direction (from the surface to the middle surface) can be simulated precisely by using the direct coupling method. © 2010 Journal of Machanical Engineering.
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页码：41 / 46
页数：5
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