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This article is cited in 8 scientific papers (total in 8 papers)
Mechanical properties, strength physics and plasticity
Structure of a deformed inhomogeneous material on the data of acoustic emission and X-ray computer microtomography
E. E. Damaskinskayaa, I. A. Panteleevb, D. R. Gafurovac, D. I. Frolova a Ioffe Institute, St. Petersburg
b Institute of Continuous Media Mechanics UB RAS, Perm
c Lomonosov Moscow State University
Abstract:
Accumulation of defects at various stages of the deformation of a structurally inhomogeneous material (granite) has been studied using two nondestructive methods: acoustic emission (AE) and X-ray computer microtomorgaphy (CT). The quasi-static testing of cylindrical samples of a Westerly granite was carried out under uniaxial compression. The control of the defect formation was realized using the real-time monitoring of acoustic emission. For each sample under study, several steps of the loading and tomographic imaging have been performed. We have found that an exponential or power-law function of the energy distribution of the AE signals makes it possible to select a sample region, in which the system of defects has transited into a self-organized criticality state and large cracks have been formed. This result coincides with the data of the X-ray tomography Computer Microtomography.
Received: 22.01.2018 Revised: 01.02.2018
Citation:
E. E. Damaskinskaya, I. A. Panteleev, D. R. Gafurova, D. I. Frolov, “Structure of a deformed inhomogeneous material on the data of acoustic emission and X-ray computer microtomography”, Fizika Tverdogo Tela, 60:7 (2018), 1353–1357; Phys. Solid State, 60:7 (2018), 1363–1367
Linking options:
https://www.mathnet.ru/eng/ftt9134 https://www.mathnet.ru/eng/ftt/v60/i7/p1353
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