Laser welding property analysis by hybrid experimental-numerical method

Leszek A. Salbut; Daniel Holstein

doi:10.1117/12.357786

17 August 1999 Laser welding property analysis by hybrid experimental-numerical method

Leszek A. Salbut, Daniel Holstein

Proceedings Volume 3745, Interferometry '99: Applications; (1999) https://doi.org/10.1117/12.357786
Event: International Conference on Optical Metrology, 1999, Pultusk Castle, Poland

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.

Citation Download Citation

Leszek A. Salbut and Daniel Holstein "Laser welding property analysis by hybrid experimental-numerical method", Proc. SPIE 3745, Interferometry '99: Applications, (17 August 1999); https://doi.org/10.1117/12.357786

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