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Deformation Features for Highly Porous Metallic Materials

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Abstract

Ultralight metallic structural materials based on foamed nichrome and cellular sandwiches made from stainless steel are prepared with a porosity of 90-95% and high specific strength indices are obtained. Effects of loss of stability and nonuniform deformation over the height are detected with compression of foamed nichrome and nickel, and they are duplicated with radial deformation of model honeycomb structures. This makes it possible to establish that on the basis of these phenomena there are local structural arches in the material. A model is suggested for an arched structural element and the elastic problem is resolved for its deformation that adequately describes the effect of loss of stability.

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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

    Valerii V. Skorokhod, Sergei M. Solonin & Viktor P. Katashinskii

Authors
  1. Valerii V. Skorokhod
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  2. Sergei M. Solonin
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  3. Viktor P. Katashinskii
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Skorokhod, V.V., Solonin, S.M. & Katashinskii, V.P. Deformation Features for Highly Porous Metallic Materials. Powder Metallurgy and Metal Ceramics 41, 253–259 (2002). https://doi.org/10.1023/A:1020575113989

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  • DOI: https://doi.org/10.1023/A:1020575113989

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