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This article is cited in 12 scientific papers (total in 12 papers)
Determination of uniaxial stresses in steel structures by the laser-ultrasonic method
A. A. Karabutovab, N. B. Podymovabc, E. B. Cherepetskayab a International Laser Center of M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
b Moscow State Mining University of the National University of Science and Technology, Moscow, 119991, Russia
c Lomonosov Moscow State University, Moscow, 119991, Russia
Abstract:
This paper describes the experimental implementation of the laser-ultrasonic method for diagnosing mechanical compression and tensile stresses in steel structures, based on the acoustoelasticity effect. The special laser-ultrasonic transducer that ensures the laser excitation and highly sensitive piezoelectric recording of head (longitudinal subsurface) ultrasonic waves. It is shown on the example of R65 rail samples of various quality that, regardless of the structural phase state of the rail, there is one and the same linear relationship between the relative variation of the velocity of head ultrasonic waves and the absolute value of uniaxial compression and tensile stresses acting in the rail.
Keywords:
mechanical stresses, acoustoelasticity effect, laser-ultrasound transducer, the velocity of head ultrasonic waves.
Received: 02.03.2016 Revised: 07.04.2016
Citation:
A. A. Karabutov, N. B. Podymova, E. B. Cherepetskaya, “Determination of uniaxial stresses in steel structures by the laser-ultrasonic method”, Prikl. Mekh. Tekh. Fiz., 58:3 (2017), 146–155; J. Appl. Mech. Tech. Phys., 58:3 (2017), 503–510
Linking options:
https://www.mathnet.ru/eng/pmtf711 https://www.mathnet.ru/eng/pmtf/v58/i3/p146
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