The role of residual thermal stress in composite interfacial strength by a novel single fibre technique

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Abstract

The temperature dependence of the interfacial properties of glass fibre reinforced polypropylene and epoxy composites was investigated using a novel microbond test in the temperature controlled environment of a thermo-mechanical analyser. Highly significant inverse dependence of IFSS on testing temperature was observed in both systems. The temperature dependence of the GF-PP IFSS was accounted for by the variation of residual radial compressive stresses at the interface with the test temperature. On the other hand, it was found that the residual thermal stress did not seem to fully account for the temperature dependence of IFSS in GF-Epoxy. Nevertheless, the results clearly showed that GF-Epoxy IFSS had a strong correlation with the modulus of the epoxy matrix.
Original languageEnglish
PagesPaper 327
Number of pages8
Publication statusPublished - 24 Jun 2012
Event15th European Conference on Composite Materials - Venice, Italy
Duration: 24 Jun 201228 Jun 2012

Conference

Conference15th European Conference on Composite Materials
CountryItaly
CityVenice
Period24/06/1228/06/12

Keywords

  • interfacial strength
  • residual thermal stress
  • microbond technique

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  • Cite this

    Yang, L., & Thomason, J. (2012). The role of residual thermal stress in composite interfacial strength by a novel single fibre technique. Paper 327. Paper presented at 15th European Conference on Composite Materials, Venice, Italy.