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Proceedings Paper

Study of welding residual stress by means of laser holography interference
Author(s): Jiahua Yang
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Paper Abstract

According to the principle of laser holography interference, the relation between interference streaks and minute displacement of the point is analysed in this paper. And according to the principle of elastic mechanics, the relation between minute displacement and welding residual stress is deduced. A set of experimental optical lines is designed to obtain the holography interference pictures. The calculation of the welding residual stress is based on the pictures. And the result has shown that the law of distribution of the welding residual stress obtained through the experiments agrees with the theoretical analyses.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57485
Show Author Affiliations
Jiahua Yang, Wuhan Univ. of Water Transportation Engineering (China)

Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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