| Issue |
J. Phys. IV France
Volume 04, Number C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
|
|---|---|---|
| Page(s) | C7-693 - C7-696 | |
| DOI | https://doi.org/10.1051/jp4:19947162 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-693-C7-696
DOI: 10.1051/jp4:19947162
1 CEA DAM, BP. 12, 91680 Bruyères-le-Châtel, France
2 ONERA L3C, BP. 79, 92322 Châtillon, France
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-693-C7-696
DOI: 10.1051/jp4:19947162
Remote detection of welds depth penetration by laser generated ultrasonics
D. Rochais1, L. Paradis1 and F. Lepoutre21 CEA DAM, BP. 12, 91680 Bruyères-le-Châtel, France
2 ONERA L3C, BP. 79, 92322 Châtillon, France
Abstract
This paper presents applications of the laser induced shear wave directivity pattern in the thermoelastic regime, to the detection and the in-depth profiling of overthickness and closed cracks perpendicular to the surface. Some results on academic samples and first measurements of actual depth profilings of welds are presented and discussed.
© EDP Sciences 1994