Improvement of the Contour Method for Measurement of Near-Surface Residual Stresses from Laser Peening

被引：0
|
作者：
M. B. Toparli
M. E. Fitzpatrick
S. Gungor
机构：
[1] The Open University,Materials Engineering
[2] Walton Hall,undefined
[3] Defense Industries Research and Development Institute (TÜBİTAK SAGE),undefined
来源：
Experimental Mechanics | 2013年 / 53卷
关键词：
Contour method; Near-surface residual stresses; Bivariate spline smoothing; X-ray diffraction; Laser peening;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study was conducted to develop a methodology to obtain near-surface residual stresses for laser-peened aluminium alloy samples using the contour method. After cutting trials to determine the optimal cut parameters, surface contours were obtained and a new data analysis method based on spline smoothing was applied. A new criterion for determining the optimal smoothing parameters is introduced. Near-surface residual stresses obtained from the contour method were compared with X-ray diffraction and incremental hole drilling results. It is concluded that with optimal cutting parameters and data analysis, reliable near-surface residual stresses can be obtained by the contour method.
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页码：1705 / 1718
页数：13
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