预拉伸铝合金厚板7050T7451内部残余应力分布测试理论及试验研究

Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (2): 192-195.

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A Study on the Theory and Experiment of Measuring the Residual Stresses Distribution in Thick Pre-stretched Aluminum Plate 7050T7451

WANG Shu-hong, ZUO Dun-wen, LI Xiang-feng, WANG Min

College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received:2004-02-02 Revised:2004-04-12 Online:2005-03-31 Published:2005-03-31

Abstract

Abstract: According to the characteristics of the thick pre-stretched aluminum alloy plate, a new method of measuring the residual stresses in thick plate is deduced by the elastic mechanical theory.The residual stresses distribution along the thick direction of plate 7050T7451 is measured by the new method, and the results of measurement are analyzed.It is shown that the new method deduced in this paper is simple and accurate, and is very useful in engineering.

Key words: pre-stretched aluminum plate, residual stress, layer-removed method, measurement

CLC Number:

WANG Shu-hong, ZUO Dun-wen, LI Xiang-feng, WANG Min. A Study on the Theory and Experiment of Measuring the Residual Stresses Distribution in Thick Pre-stretched Aluminum Plate 7050T7451[J]. Journal of Applied Sciences, 2005, 23(2): 192-195.

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A Study on the Theory and Experiment of Measuring the Residual Stresses Distribution in Thick Pre-stretched Aluminum Plate 7050T7451

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