The influence of thermal stress on the interface strength of a fibre-reinforced thermoplastic investigated by a novel single fibre technique

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Abstract

The present work focuses on further verification of the hypothesis that the level of apparent IFSS in glass fibre-reinforced thermoplastic composites can be modelled satisfactorily by assuming that the main component of the IFSS is actually due to a combination of thermal residual stress and static friction at the fibre-polymer interface. In order to obtain information on the temperature dependence of glass fibre - polypropylene IFSS we have adapted a thermo-mechanical analyser to enable interfacial microbond testing to be carried out in a well controlled temperature environment. Test results obtained by TMA-microbond testing showed excellent comparability with those obtained by normal microbond testing. The temperature dependence of IFSS of glass fibre - polypropylene was measured in the range from -40°C up to 100°C. The IFSS showed a highly significant inverse dependence on testing temperature.
Original languageEnglish
Publication statusPublished - 7 Jun 2010
Event14th European Conference on Composite Materials, ECCM14 - Budapest, Hungary
Duration: 7 Jun 201010 Jun 2010

Conference

Conference14th European Conference on Composite Materials, ECCM14
CityBudapest, Hungary
Period7/06/1010/06/10

Keywords

  • glass fibre-reinforced thermoplastic composites
  • thermal residual stress
  • static friction
  • temperature dependence of glass fibre
  • microbond testing

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