期刊
EXPERIMENTAL MECHANICS
卷 53, 期 9, 页码 1705-1718出版社
SPRINGER
DOI: 10.1007/s11340-013-9766-x
关键词
Contour method; Near-surface residual stresses; Bivariate spline smoothing; X-ray diffraction; Laser peening
资金
- Lloyd's Register Foundation
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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