Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21147
Title: Application of moire interferometry to study residual deformation in lap-welded steel plates
Authors: Xie, HM
Wang, YF
Tang, MJ
Liu, ZW
Hu, ZX
Lu, J
Chen, PW
Keywords: Hole-drilling method
Moire interferometry
Phase-shifting technique
Residual deformation
Issue Date: 2011
Publisher: Wiley-Blackwell
Source: Strain, 2011, v. 47, p. 311-319 How to cite?
Journal: Strain 
Abstract: Moire interferometry combined with hole-drilling is an effective method for measuring welding residual deformation. In this study, two lap-welded rectangular steel plates with different overlap widths were manufactured, and cross-gratings with a frequency of 1200 lines per mm were replicated on test areas of the welds. Sixteen through holes were drilled in the plates to release residual stress, while Moire interferometry, integrated with a phase-shifting technique, was used to determine the corresponding surface residual deformation. The distribution characteristics of the residual displacements around the drilled holes were investigated using the experimental data as basis. The relationship between the residual displacement located in the plates and the distance to the weld lines is also presented in this paper. Furthermore, the magnitude and direction of the residual strain both near the holes and within the plates were analysed. The experimental data and detailed analysis in this paper can serve as some reference for research on the residual strain of welds.
URI: http://hdl.handle.net/10397/21147
ISSN: 0039-2103
DOI: 10.1111/j.1475-1305.2010.00771.x
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