Structural Modeling in the Mechanics of Porous Materials

Authors: Pleskachevskii Y.M.; Shil'ko S.V.; Chernous D.A.

Source: Mechanics of Composite Materials, Volume 39, Number 2, March 2003 , pp. 129-136(8)

Publisher: Springer

Abstract:

A new method for analyzing the deformation behavior of rigid and elastic foams with a small volume content of solid phase ( < 0.2) is developed. Various structural models for describing the elastic behavior of rigid and elastic plastic foams are used and compared. The results of structural simulation of anisotropic auxetic (i.e., having a negative Poisson ratio) foams with concave cells are presented. For cyclic uniaxial compression of rigid foams and volumetric deformation of elastic foams, the stress-strain curves are obtained. The general shape of the curves agrees well with the nonlinearly elastic behavior of plastic foams observed in experiments.

Keywords: porous material; strut models; structural unit; effective elastic properties; nonlinear viscoelastic behavior

Language: English

Document Type: Research article

Affiliations: 1: Belyi Metal-Polymer Research Institute, Belarus National Academy of Sciences, Gomel', Belarus

Publication date: 2003-03-01

• In this: publication
• By this: publisher
• In this Subject: Chemical Engineering ,  General & Civil Engineering
• By this author: Pleskachevskii Y.M. ;  Shil'ko S.V. ;  Chernous D.A.

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