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Stable acoustic-emission characteristic of the extent of damage to brittle materials

  • Solid-State Physics
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Russian Physics Journal Aims and scope

Abstract

An experimental study has been made of the dissipation of elastic energy in the course of the inelastic deformation and fracture of brittle materials. The energy characteristics of acoustic emission and the amount of energy expended irreversibly on inelastic deformation were determined simultaneously during uniaxial quasistatic loading. Test samples of grade 600 cement paste, of grade 150 structural ceramic, and of the ceramic ferroelectric materials PKR-1 and TsTS-19 were studied. The results demonstrate the effectiveness of the thermodynamic acoustic-emission damage parameter ω(σ). This parameter characterizes the relative contribution of the rate of the buildup of latent energy of fracture to the overall rate of energy dissipation in the course of the inelastic deformation of a solid.

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Authors
  1. Yu. V. Prus
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Additional information

North Caucasus Science Center College. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 62–66, April, 1994.

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Prus, Y.V. Stable acoustic-emission characteristic of the extent of damage to brittle materials. Russ Phys J 37, 359–362 (1994). https://doi.org/10.1007/BF00560220

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  • DOI: https://doi.org/10.1007/BF00560220

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