Creep of power-law material containing spherical voids

Research output: Contribution to journalArticle

Abstract

Finite element calculations have been carried out for spherical unit cells containing a concentric spherical hole to characterize the power low creep of a material containing voids. Axisymmetric states of macroscopic stress were applied to the unit cells ranging from purely hydrostatic loading to purely deviatoric stressing. The results of the unit cell calculations are approximated well by a creep potential for the macroscopic behavior of a porous material. This potential agrees with the unit cell results for purely hydrostatic stress and purely deviatoric stress and involves a simple elliptical interpolation in between. The model predicts quite well the ratio of transverse to axial strain rate in uniaxial compression tests.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalUnknown Journal
Publication statusPublished - 1991
Externally publishedYes

Fingerprint

void
creep
Creep
power law
hydrostatics
strain rate
interpolation
Porous materials
Strain rate
Interpolation
compression
material
calculation
test

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Creep of power-law material containing spherical voids. / Sofronis, Petros Athanasios; McMeeking, R. M.

In: Unknown Journal, 1991, p. 1-8.

Research output: Contribution to journalArticle

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