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Proceedings Paper

Laser photoacoustic microscopy of solids with residual stresses
Author(s): Kyrill L. Muratikov; Alexej L. Glazov
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Paper Abstract

The results of scanning photodeflection and photoacoustic piezoelectric imaging of the Vickers indentation on Al2O3-SiC-TiC ceramic composite are presented. It is demonstrated that external loading influences on the photoacoustic signal behavior near the radial crack tips. The theoretical model of the photoacoustic signal behavior near radial cracks under external loading is proposed. It is shown that the photoacoustic signal modifications near the crack tips are in a good agreement with the proposed theoretical model both for normal and shear external stresses. The obtained results demonstrate that the photoacoustic piezoelectric method is able to provide an important information about stress intensity factors of the crack tips.

Paper Details

Date Published: 19 June 2003
PDF: 6 pages
Proc. SPIE 5066, Lasers for Measurements and Information Transfer 2002, (19 June 2003); doi: 10.1117/12.501390
Show Author Affiliations
Kyrill L. Muratikov, A.F. Ioffe Physico-Technical Institute (Russia)
Alexej L. Glazov, A.F. Ioffe Physico-Technical Institute (Russia)

Published in SPIE Proceedings Vol. 5066:
Lasers for Measurements and Information Transfer 2002
Vadim E. Privalov, Editor(s)

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