Influence of the material hardening and compressibility on the solution of elastoplastic deformation problems for a space with a cylindrical cavity |
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Authors: | O A Kilikovskaya N V Ovchinnikova |
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Institution: | 1.Institute of Mechanics,Lomonosov Moscow State University,Moscow,Russia |
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Abstract: | The present paper deals with plane deformation problems (ɛ
z
= 0) concerned with elastoplastic deformation of a space with a cylindrical cavity in the case where the load is given either
at infinity or on the cavity surface. It is assumed that the material obeys the relations of the theory of flow with isotropic
hardening and the von Mises plasticity condition. The effects of the elastic compressibility (Poisson’s ratio) and the coefficient
of linear hardening on the stress-strain state are studied. The influence of the linear hardening is shown to be small, while
that of the elastic compressibility is shown to be quite significant. |
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Keywords: | |
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