Numerical Method for Determining a Stress Intensity Factor in the Case of Solids of Homogeneous and Heterogeneous Materials with a Crack
V. M. Tikhomirov
Siberian State University of Railway Engineering, Novosibirsk, 630049 Russia
Keywords: коэффициент интенсивности напряжений, трещина на границе раздела двух сред, асимптотическое решение, метод конечных элементов, stress intensity factor, crack at the interface between two media, asymptotic solution, finite element method
Abstract
Algorithms for determining the stress intensity factor are developed on the basis of the results of the analysis of asymptotic solutions to the problems of deformation of a homogeneous solid with a cut and a plate with a crack located at an interface between two media,. The proposed algorithms are used to calculate stress intensity coefficients using the results of a numerical solution of the problems of loading various flat and spatial homogeneous cracked solids, as well as a plate with a crack located at the interface between two elastic media. It is shown that the calculation results are in good agreement with the data obtained by other methods.
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