5 May 1999 Advanced holographic nondestructive testing system for residual stress analysis
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Proceedings Volume 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (1999) https://doi.org/10.1117/12.347399
Event: International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 1998, St. Petersburg, Russian Federation
Abstract
The design and operating of a portable holographic interferometer for residual stress analysis by creating a small scratch along with a new mathematical algorithm of calculations are discussed. Preliminary data of the stress investigations on aluminum and steel alloys have been obtained by the automatic processing of the interference pattern using a notebook computer. A phase-shift compensation technique in real-time reflection interferometry is used to measure the out-of-plane stress release surface displacement surrounding a small scratch (25 micrometer depth and 0.5 mm width) in a plate with residual stress of around 50 MPa. Comparison between theoretical models for a rectangular and triangular shaped scratch with the experimental data are presented.
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Anatoli Kniazkov, Anatoli Kniazkov, Yuri I. Onischenko, Yuri I. Onischenko, George Eugene Dovgalenko, George Eugene Dovgalenko, Gregory J. Salamo, Gregory J. Salamo, Tatiana Yu. Latychevskaia, Tatiana Yu. Latychevskaia, } "Advanced holographic nondestructive testing system for residual stress analysis", Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); doi: 10.1117/12.347399; https://doi.org/10.1117/12.347399
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