Numerical Solution of the Thermally Isolated Crack Problem Using Singular Integral Equations

Numerical Solution of the Thermally Isolated Crack Problem Using Singular Integral Equations

ავტორები

DOI:

https://doi.org/10.52340/building.2025.72.02.12

საკვანძო სიტყვები:

Thermal Insulation Crack, Singular Integral, Numerical Solution, Harmonic function, Algorithm

ანოტაცია

The paper discusses the numerical solution of the thermally isolated crack problem using singular integral equations. A circular crack is given in an infinite body, on which the temperature distribution function is known. Determination of the intensity coefficients for stress distribution in a small region near the crack tips is based on a first-kind singular integral equation, which is solved using Markov-type quadrature formulas. The values of stresses in the vicinity of the crack are determined by Cauchy-type integrals; for their computation Professor M. Kublashvili’s quadratic formula is used. A specific test problem is discussed. The program “Mathematika” has been compiled in a symbolic language.

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წყაროები

Morozov, N.F. Mathematical Questions of Crack Theory. Moscow: “Nauka”, 1984, 255 p.

Panasyuk, V.V., Savruk, M.P., Datsyshyn, A.P. Stress Distribution Near Cracks in Plates and Shells. Kyiv: Naukova Dumka, 1976, 443 p.

Panasyuk, V.V. Limit Equilibrium of Brittle Bodies with Cracks. Kyiv: “Naukova Dumka”, 1968.

Cherepanov, G.P. Mechanics of Brittle Fracture. Moscow: “Nauka”, 1974.

Muskhelishvili, N.I. Some Basic Problems of the Mathematical Theory of Elasticity. Moscow: Nauka, 1966, 707 p.

Sedov, L.I. Continuum Mechanics, Vol. 2. Moscow: “Nauka”, 1973.

M. Kublashvili. Development of Methods for Studying the Stress–Strain State and Fracture Processes of Bodies with Cracks Using the Method of Singular Integral Equations, Doctoral Dissertation, Tbilisi, 2004.

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გამოქვეყნებული

2026-01-29

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