This article is cited in 4 papers

Model of a plastically compressible material and its application to the analysis of the compaction of a porous body

A. G. Zalazinskiy, A. P. Polyakov

Institute of Mechanical Engineering, Ekaterinburg, 620219

Abstract: This paper considers a model of a plastically compressible porous medium with a cylindrical-type yield condition and its associated constitutive relations, which ensure independent mechanisms of shear and compaction of the porous material. This allows one to use the well-known theorems of plastic theory to analyze plastically compressible media and obtain analytical solutions for a number of boundary-value problems, including those taking into account conditions on strong-discontinuity surfaces. Results from full-scale studies of the structural periodicity of noncompact materials using wavelet analysis were employed to choose a physical model for a porous body and determine the properties and dimensions of a representative volume. The problem of extrusion of a porous material through a conical matrix was solved.

UDC: 539.3

Received: 03.07.2001
Accepted: 28.01.2002

 English version: Journal of Applied Mechanics and Technical Physics, 2002, 43:3, 457–466

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