ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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9
Issue
vol 65 / September, 2022
Article
UDC 620.179.16

LASER-ULTRASONIC DIAGNOSTICS OF RESIDUAL STRESS IN THIN-WALLED ELEMENTS OF SPACE-ROCKET TECHNIQUE

V. . Bychenok
ITMO University, Saint Petersburg, 197101, Russian Federation; Associate Professor


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Abstract.   Applicability of laser-ultrasonic method for estimation of residual stress in thin-walled elements is studied experimentally. The investigation is carried out with the use of a laser-ultrasonic defectoscope and laser acoustooptical converters of longitudinal and superficial Raleigh waves.
Keywords: reliable functioning, residual stress, laser-ultrasonic diagnostics, thin-wall elements.