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Proceedings Paper

Laser welding property analysis by hybrid experimental-numerical method
Author(s): Leszek A. Salbut; Daniel Holstein
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Paper Abstract

The concept, methodology and instrumentation for hybrid experimental-numerical residual stress analysis in a laser weldment are presented. Grating interferometry and digital speckle photography are applied as complementary experimental methods for determination of the residual strains and of the material properties (Young's module and Poisson ratio) at various zones of a laser weldment. These data used in basic and localized hybrid techniques enable to determine the FEM model of laser weldment. This model is used in full hybrid technique for the residual stress-state determination by comparison in a close iterative loop of the experimental and numerical results obtained in uniaxial tensile test.

Paper Details

Date Published: 17 August 1999
PDF: 7 pages
Proc. SPIE 3745, Interferometry '99: Applications, (17 August 1999); doi: 10.1117/12.357786
Show Author Affiliations
Leszek A. Salbut, Warsaw Univ. of Technology (Poland)
Daniel Holstein, Bremen Institut fuer Angewandte Strahltechnik (Germany)

Published in SPIE Proceedings Vol. 3745:
Interferometry '99: Applications
Werner P. O. Jueptner; Krzysztof Patorski, Editor(s)

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