The development of stress in inclusions caused by plastic flow in the matrix of a two-phase composite and its effect on the relief of initial residual stress

John R. Griffiths, Cameron J Davidson, Trevor R. Finlayson, Ed C. Oliver, Qigui Wang, Michael E. Fitzpatrick

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

Stresses in the particles of two-phase composites are caused by particle/matrix differences in the coefficients of thermal expansion, elastic moduli and yield stress. The three types of stress are designated as σth, σel and σpl, respectively. When the matrix is strained plastically in uniaxial tension the thermal stress, σth, is relieved but this relief is counteracted by the development of σpl. It has proved experimentally difficult in the past to deconvolute the two effects. We show how this difficulty can be overcome by making measurements at a suitable elevated temperature and we also give an example of how the two effects interact at lower temperatures.

Original languageEnglish
Title of host publication8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014
PublisherEngineers Australia
Pages788-795
Number of pages8
ISBN (Electronic)9781922107350
ISBN (Print)9781510802674
Publication statusPublished - 1 Nov 2014
Event8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014 - Melbourne, Australia
Duration: 25 Nov 201426 Nov 2014

Conference

Conference8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014
CountryAustralia
CityMelbourne
Period25/11/1426/11/14

Keywords

  • Composites
  • Plasticity stress
  • Stress relief

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'The development of stress in inclusions caused by plastic flow in the matrix of a two-phase composite and its effect on the relief of initial residual stress'. Together they form a unique fingerprint.

Cite this