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Method for determining power-type complex singularities in solutions of singular integral equations with generalized kernels and complex conjugate unknowns

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Abstract

We develop a method for determining power-type complex singularities of solutions for a class of one-dimensional singular integral equations with generalized kernels and complex conjugate unknown functions. By analyzing the characteristic part of a singular integral equation, we reduce the problem of determining the solution singularity exponents at the ends of the integration interval to two independent transcendental equations for these exponents. We show that the distribution of admissible singularity exponents is of continuous character. We present numerical results for a two-dimensional elasticity problem whose mathematical statement leads to a singular integral equation of the class under study. We also reveal the drawbacks of one classical approach to the determination of stress field singularities.

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Authors and Affiliations

  1. Elektrogorsk Research and Engineering Center for Nuclear Power Plant Safety (FSUE “EREC”), Svyatogo Konstanina 6, Electrogorsk, Moscow Region, 142530, Russia

    A. V. Andreev

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  1. A. V. Andreev
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Correspondence to A. V. Andreev.

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Original Russian Text © A.V. Andreev, 2009, published in Izvestiya Akademii Nauk. Mekhanika Tverdogo Tela, 2009, No. 5, pp. 42–58.

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Andreev, A.V. Method for determining power-type complex singularities in solutions of singular integral equations with generalized kernels and complex conjugate unknowns. Mech. Solids 44, 691–704 (2009). https://doi.org/10.3103/S0025654409050069

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  • DOI: https://doi.org/10.3103/S0025654409050069

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