Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear

Chi Pong Tsui, D. Z. Chen, Chak Yin Tang, P. S. Uskokovic, J. P. Fan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

A three-dimensional finite element cell modeling technique has been applied to predict the particle-matrix debonding process of particulate polymer composite (PPC) subject to simple shear loading. The particle-matrix debonding in PPC has been simulated by using two different debonding criteria: stress-based and strain-based. The stress-based debonding criterion uses the hydrostatic tensile stress as a critical stress while the strain-based one uses the equivalent plastic strain at failure as a critical factor for element failure. In this analysis, glass beads-reinforced polyphenylene oxide (GB/PPO) has been used for verification of the predicted results. As compared with the results from scanning electron microscopy (SEM) based in situ simple shear test of GB/PPO composite, the model with the stress-based criterion is much more appropriate for simulation of the shear damage process. The importance of selecting an appropriate debonding criterion for achieving correct simulation results could be revealed. The essential information like the threshold strain for initiation of shear damage could then be acquired from the model with the verified stress-based debonding criterion.
Original languageEnglish
Pages (from-to)429-437
Number of pages9
JournalJournal of Materials Processing Technology
Volume167
Issue number2-3
DOIs
Publication statusPublished - 30 Aug 2005

Keywords

  • Debonding
  • In situ scanning electron microscopy (SEM)
  • Particulate polymer composites
  • Shear damage

ASJC Scopus subject areas

  • Materials Science(all)

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