Share Email Print
cover

Proceedings Paper

Application of laser generated ultrasonic pulses in diagnostics of residual stresses in welds
Author(s): A. Yu. Ivochkin; A. A. Karabutov; I. M. Pelivanov; M. L. Lyamshev; U. M. Rohadgi; M. Subudhi
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The laser optoacoustic method is applied for nondestructive evaluation of residual stresses in metals. Theoretical background establishes the acoustoelasticity relationships between applied biaxial stresses and deviations of the longitudinal wave velocity in solids. The experimental technique bases on laser thermoptical excitation of nanosecond ultrasonic pulses on the surface of samples under study and their backward mode piezodetection with a high temporal resolution. The samples, produced from stainless steel, had thickness from 1.67 mm to 8.87 mm. Welds are made up by means of electronic beam overheating of the samples with different intensities of the beam. Plane distributions of relative longitudinal wave velocity deviations, produced by stresses, were obtained.

Paper Details

Date Published: 9 June 2006
PDF: 12 pages
Proc. SPIE 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications, 60530Z (9 June 2006); doi: 10.1117/12.660425
Show Author Affiliations
A. Yu. Ivochkin, International Laser Ctr. of Moscow State Univ. (Russia)
A. A. Karabutov, International Laser Ctr. of Moscow State Univ. (Russia)
I. M. Pelivanov, International Laser Ctr. of Moscow State Univ. (Russia)
M. L. Lyamshev, General Physics Institute (Russia)
U. M. Rohadgi, Brookhaven National Lab. (United States)
M. Subudhi, Brookhaven National Lab. (United States)


Published in SPIE Proceedings Vol. 6053:
International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications
Willy L. Bohn; Vladimir S. Golubev; Andrey A. Ionin; Vladislav Ya. Panchenko, Editor(s)

© SPIE. Terms of Use
Back to Top