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Stress and Strain Fields near a Crack Tip in Damaged Solidsстатья
- Автор: Lomakin E.V.
- Сборник: Fracture Mechanics of Ceramics
- Том: 13
- Глава в коллективной монографии
- Год издания: 2002
- Место издания: Kluwer Academic/Plenum Publishing, New York, United States New York
- Первая страница: 9
- Последняя страница: 25
- Аннотация: The deformation properties of materials containing various kinds of structure defects, pores and microcracks are analyzed in some details. The relationship between shear and bulk deformation and the dependence of deformation characteristics of these materials on the type of stress state, which is related to the alteration of defects behavior under different loading conditions, are taken into account. The constitutive relations which make it possible to describe the observed phenomena are presented. The possible representations of asymptotic solutions of crack problems in nonlinear media are considered. For particular kinds of functions involved in the constitutive relations, the stress, strain and displacement fields at the tip of a crack in far tensile field under conditions of plane strain are computed. A closed-form asymptotic solution is obtained for a tensile crack under conditions of plane stress.
- Добавил в систему: Ломакин Евгений Викторович