Effects of two damage mechanisms on effective elastic properties of particulate composites

W. Shen, Chak Yin Tang, Chi Pong Tsui, L. H. Peng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

This study focuses on development of a method for predicting effective elastic properties of damaged particulate polymer composites. Two damage parameters were introduced and defined by volume fraction of both the void-damage and the debonding-damage. The former parameter was determined by 3-dimensional strain measurement of damaged composite samples, while the latter were estimated from a typical experimental data of the repeatedly load-unload tensile tests. Based on M-T micro-mechanics theory, the equations for estimation of the effective elastic properties of the damaged particulate composites in response to the longitudinal true uni-axial strain were formulated. The effects of two damage mechanisms and glass-bead contents on the effective elastic properties of glass bead filled polyphenylene oxide (GB/PPO) composites were investigated by this approach. The predicted results for the effective elastic modulus were close to the experimental data.
Original languageEnglish
Pages (from-to)1397-1406
Number of pages10
JournalComposites Science and Technology
Volume62
Issue number10-11
DOIs
Publication statusPublished - 1 Aug 2002

Keywords

  • A. Particle-reinforced composites
  • B. Debonding
  • B. Modelling
  • C. Damage mechanics
  • C. Elastic properties

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering(all)

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