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Calculation of the Critical Radius of an Inclusion for Fracture from a Porous Matrix under the Conditions of Plastic Deformation

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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

This work is concerned with the theoretical determination of the critical radius of a rigid inclusion at the moment of its decohesion from the material of a porous matrix. The criterion of V. V. Skorokhod served as the basis for analysis of the limiting state. Change of the porosity and accumulated strain of the solid phase in the process of plastic deformation were taken into account in the calculations. It is shown that the values of investigated properties depend on the concentration of inclusions and the porosity of the ductile layer. The dependence of accumulated strain in the solid phase on porosity was obtained.

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Authors and Affiliations

  1. National Academy of Sciences of Ukraine, Institute for Problems of Materials Science, ul. Krzhizhanovskogo 3, Kiev, Ukraine, 03142

    Mikhail B. Shtern

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  1. Mikhail B. Shtern
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Shtern, M.B. Calculation of the Critical Radius of an Inclusion for Fracture from a Porous Matrix under the Conditions of Plastic Deformation. Powder Metallurgy and Metal Ceramics 42, 478–490 (2003). https://doi.org/10.1023/B:PMMC.0000013220.88819.a6

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  • DOI: https://doi.org/10.1023/B:PMMC.0000013220.88819.a6

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