Stressed-strain and limit states of a prestressed body with a healed crack

Keywords

isotropic body, prestressed body, crack healing, material strength.

Cite as

Sylovanyuk V. P., Ivantyshyn N. A., and Didukh A. I. Stressed-strain and limit states of a prestressed body with a healed crack. Physicochemical Mechanics of Materials. 2024. 60(3), 015-021.

https://doi.org/10.15407/pcmm2024.03.015

Abstract

The problem of healing a plane crack using injection technology is considered within the framework of brittle fracture mechanics of materials with initial stresses. With the use of integral Fourier transforms, singular integral equations are obtained with respect to the functions of displacements jump on the surfaces of the filled crack. The exact solution of the corresponding equation in the case of an elliptical crack in the normal opening displacement plane is obtained. The residual strength of the body with a healed crack is calculated according to the Irwin criterion. The parameters on which the effectiveness of restoring the strength of a prestressed body with a crack depends, were established.

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