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Proceedings Paper

Strain distribution analysis of welded lap joints with different matching by moire interferometry
Author(s): Jun Cheng; Ruhua Fang
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Paper Abstract

The welded lap joints with different matching are analyzed by Moire interferometry. The strain distribution with lower matching in front weld metal are higher than that with higher matching in front weld metal. The strain distributions with lower matching in base metal are lower than that with higher matching in base metal. The strain distribution of different matching along the force parallel direction has little difference. The V field fringe deformation of different matching in base metal and weld metal are the same. The U field fringe deformations are different. The fringes with lower matching in weld metal are more crowded than base metal. The fringe with higher matching is more concentrated in the middle. The strain distributions of higher matching in weld metal are lower. The finite element was used to prove the experiment results in this paper. This result has engineering meaning to improve the mechanical properties of the welded lap joint.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468817
Show Author Affiliations
Jun Cheng, Tongji Univ. (China)
Ruhua Fang, Tongji Univ. (China)


Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics

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