Estimating the plastic strain with the use of acoustic anisotropy
- Authors: Belyaev A.K.1, Lobachev A.M.1, Modestov V.S.1, Pivkov A.V.1, Polyanskii V.A.1, Semenov A.S.1, Tret’yakov D.A.1, Shtukin L.V.1
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Affiliations:
- Peter the Great St. Petersburg Polytechnic University
- Issue: Vol 51, No 5 (2016)
- Pages: 606-611
- Section: Article
- URL: https://journals.rcsi.science/0025-6544/article/view/162763
- DOI: https://doi.org/10.3103/S0025654416050149
- ID: 162763
Cite item
Abstract
Experimental verification is used to show that reference specimens and structure unloading do not permit obtaining an adequate estimate of plastic strain by measuring the acoustic anisotropy. Analytic estimates of the speed of propagation of a plane acoustic wave of various polarizations in an elastoplastic material in the direction orthogonal to the action of preliminary uniaxial stress are obtained. An analysis of the obtained relations reveala an advantage of using absolute values of the velocity of longitudinal and transverse waves for the plastic strain identification. In contrast to acoustic anisotropy, the velocities vary monotonically in a wider range of plastic strains. At the same time, the elastic strain does not affect the longitude wave velocity, which allows one to use the measurement results to estimate the character of strains.
About the authors
A. K. Belyaev
Peter the Great St. Petersburg Polytechnic University
Author for correspondence.
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
A. M. Lobachev
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
V. S. Modestov
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
A. V. Pivkov
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
V. A. Polyanskii
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
A. S. Semenov
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
D. A. Tret’yakov
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251
L. V. Shtukin
Peter the Great St. Petersburg Polytechnic University
Email: vice.ipme@gmail.com
Russian Federation, ul. Polytechnicheskaya 29, St. Petersburg, 195251