Irreproducibility of acoustic emission under cyclic irradiation of solids by an infrared laser pulse
- Authors: Zotov S.D.1, Kuznetsov A.A.1, Lebedev A.A.1, Lotkova E.N.1
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Affiliations:
- Lebedev Physical Institute
- Issue: Vol 44, No 8 (2017)
- Pages: 219-222
- Section: Article
- URL: https://journals.rcsi.science/1068-3356/article/view/228421
- DOI: https://doi.org/10.3103/S1068335617080012
- ID: 228421
Cite item
Abstract
Acoustic emission (AE) caused by a stress wave in solid material samples with various thermophysical properties, i.e., copper, aluminum, and glass upon exposure to СO2 laser pulses is studied. It is found that the general AE picture (the AE signal arrival time, its amplitude, and others) is not reproduced during repeated experiments following one after another, which indicates irreversible local changes occurred in the material structure. The effect of the critical material energy density on the AE pattern during the laser exposure is demonstrated.
Keywords
About the authors
S. D. Zotov
Lebedev Physical Institute
Author for correspondence.
Email: zotov@sci.lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
A. A. Kuznetsov
Lebedev Physical Institute
Email: zotov@sci.lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
A. A. Lebedev
Lebedev Physical Institute
Email: zotov@sci.lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
E. N. Lotkova
Lebedev Physical Institute
Email: zotov@sci.lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
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