Brittle fracture of an elastic layer with a defect in the form of a circle under biaxial loading

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Abstract

Based on experimental data on the combined loading of an infinite layer weakened by a circular hole in a brittle material, its critical state, determined by the energy criterion, is modeled. The failure criterion is related to the free energy flow through the interaction arc and the linear size. The proposed approach allows us to reflect the dependence of the critical external load on the radius of curvature. A procedure for determining the value of the linear size is proposed and implemented. Using known experimental results, an estimate of the introduced linear parameter for a layer of GVVS-16 gypsum was obtained.

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About the authors

V. V. Glagolev

Tula State University

Author for correspondence.
Email: vadim@tsu.tula.ru
Russian Federation, Tula, 300012

A. A. Markin

Tula State University

Email: markin-nikram@yandex.ru
Russian Federation, Tula, 300012

References

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  8. V. V. Glagolev and A. A. Markin, “Effect of a linear parameter on the brittle fracture of an elastic layer with a circular hole,” J. Appl. Mech. Tech. Phy. 64, 871–877 (2023). https://doi.org/10.1134/S0021894423050164
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2. Fig. 1. The loading scheme of the circular hole.

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3. Fig. 2. Experimental data and their interpretation. The dimension of the abscissa axis in mm.

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