On the behaviour of a particulate metal matrix composite subjected to cyclic temperature and constant stress

Haofeng Chen, Alan R.S. Ponter

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The paper describes a method of characterising the behaviour of an idealised particulate metal matrix composite composed of elastic particles and an elastic-perfectly plastic matrix subjected to constant macro stress and a cyclic temperature history. The computational method, the Linear Matching Method, was originally developed for structural life assessment studies, and allows a direct evaluation of the load ranges for which differing modes of behaviour occur in the steady cyclic state; shakedown, reverse plasticity and ratchetting. A simple homogenised model is considered, consisting of spherical particles embedded in a cubic matrix array. The resulting solutions are presented as non-dimensional equations derived from numerical solutions for two composites, alumina and silicon carbide particles embedded in an aluminium matrix.
LanguageEnglish
Pages425-441
Number of pages16
JournalComputational Materials Science
Volume34
Issue number4
DOIs
Publication statusPublished - Dec 2005

Fingerprint

Metal Matrix Composites
metal matrix composites
particulates
Metals
carbides
Composite materials
matrices
Alumina
plastic properties
Plasticity
silicon carbides
Computational Methods
Temperature
Aluminum
temperature
Aluminum Oxide
Reverse
Plastics
Silicon
plastics

Keywords

  • particulate composites
  • thermal loading
  • plasticity
  • shakedown
  • ratchetting
  • materials science

Cite this

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On the behaviour of a particulate metal matrix composite subjected to cyclic temperature and constant stress. / Chen, Haofeng; Ponter, Alan R.S.

In: Computational Materials Science, Vol. 34, No. 4, 12.2005, p. 425-441.

Research output: Contribution to journalArticle

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AB - The paper describes a method of characterising the behaviour of an idealised particulate metal matrix composite composed of elastic particles and an elastic-perfectly plastic matrix subjected to constant macro stress and a cyclic temperature history. The computational method, the Linear Matching Method, was originally developed for structural life assessment studies, and allows a direct evaluation of the load ranges for which differing modes of behaviour occur in the steady cyclic state; shakedown, reverse plasticity and ratchetting. A simple homogenised model is considered, consisting of spherical particles embedded in a cubic matrix array. The resulting solutions are presented as non-dimensional equations derived from numerical solutions for two composites, alumina and silicon carbide particles embedded in an aluminium matrix.

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