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This article is cited in 9 scientific papers (total in 9 papers)
The influence of mechanical stresses in a D16 aluminum-alloy plate on the generation of acoustic waves under laser irradiation
A. L. Glazov, K. L. Muratikov Ioffe Institute, St. Petersburg
Abstract:
Laser generation of ultrasound in metals with internal mechanical stresses has been analyzed. The characteristics of a photoacoustic signal in the vicinity of a hole in a D16 alloy plate under the action of mechanical stresses have been studied. The discrepancy between the experimental results and predictions of the thermodynamic model for the dependence of the thermal expansion coefficient on mechanical stresses was found. For proper description of the signal characteristics in real metals, we have proposed to take into account the influence of the electron subsystem on laser generation of acoustic waves.
Keywords:
thermoelasticity, photoacoustic microscopy, residual stresses, Kirsch problem, electron gas pressure.
Received: 24.05.2019 Revised: 04.06.2019 Accepted: 04.06.2019
Citation:
A. L. Glazov, K. L. Muratikov, “The influence of mechanical stresses in a D16 aluminum-alloy plate on the generation of acoustic waves under laser irradiation”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 45:17 (2019), 51–54; Tech. Phys. Lett., 45:9 (2019), 902–905
Linking options:
https://www.mathnet.ru/eng/pjtf5339 https://www.mathnet.ru/eng/pjtf/v45/i17/p51
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Abstract page: | 35 | Full-text PDF : | 10 |
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