Abstract
The problem of long-term fracture of an aging reinforced composite array having hexagonal symmetry and weakened by a flat circular macrocrack is considered based on the Boltzmann-Volterra principle and the theory of long-term fracture of viscoelastic bodies. The array is under the action of stationary tensile forces applied at infinity and normal to the crack plane. The Maslov-Arutyunyan operator is used to describe the aging strain properties of the array. The irrational functions of integral Volterra operators obtained during the solution are determined by expanding them into continued fractions. The crack growth equations derived are numerically solved for a specific material (ferroconcrete). Curves of the rupture life of the composite array, kinetics of crack growth, and safe loading are presented.
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S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kiev. Translated from Prikladnaya Mekhanika, Vol. 35, No. 12, pp. 72–79, December, 1999.
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Kaminskii, A.A., Gavrilov, G.V. Subcritical growth of a crack in a transversally isotropic aging composite under long-term static loading. Int Appl Mech 35, 1263–1271 (1999). https://doi.org/10.1007/BF02682400
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DOI: https://doi.org/10.1007/BF02682400