Study on the residual stresses distribution in thick pre-stretched aluminum plate

被引：2
作者：
Guo H. [1 ]
Zuo D. [2 ]
Yin F. [1 ]
He Y. [1 ]
Xu J. [1 ]
Chen B. [3 ]
机构：
[1] School of Mechanical and Vehicle Engineering, Changzhou Institute of Technology, Changzhou
[2] School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
[3] Russ College of Engineering and Technology, Ohio University, Athens, 45701, OH
来源：
| 2018年 / Trans Tech Publications Ltd卷 / 764期
关键词：
Modified layer-removed method; Pre-stretched aluminum alloy thick plate; Residual stress;
D O I：
10.4028/www.scientific.net/KEM.764.49
中图分类号：
学科分类号：
摘要：
It is one of the difficult problems in the manufacture of the integrated aircraft part of Machining distortion caused by residual stress. According to the characteristics of aluminum alloy pre stretched thick plate, the modified removal method for measuring residual stress in thick pre-stretched aluminum plates is proposed and the stress-strain relation matrix is deduced by elasticity theory. Moreover, the residual stresses in the specimen of 7075T7351 plate is measured by the proposed method, and the results are finally analyzed and compared with the data obtained by other methods. The results indicate that the proposed method is effective in measuring the residual stress in thick pre-stretched aluminum alloy plates. The measurement results can be used for the quantitative analysis of aerospace parts machining distortion caused by residual stress, and it has higher value in engineering application. © 2018 Trans Tech Publications, Switzerland.
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页码：49 / 57
页数：8
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