Fatigue crack propagation in glass-fibre and glass-sphere filled PBT composites

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Abstract

Fatigue crack propagation has been studied in injection-moulded plates of unfilled PBT and composites filled with short glass fibres of varying length and in different volume fractions. Materials filled with glass spheres and short glass fibres have also been investigated. The influence of crack propagation direction and of the microstructural composition on crack speed is discussed. It is found that a model which accounts for the fibre orientation distribution, the skin - core morphology and the change in failure mechanisms due to variations in the fibre length and aspect ratio can explain the differences observed in crack propagation behaviour.

Original languageEnglish
Pages (from-to)3-11
Number of pages9
JournalInternational Journal of Fatigue
Volume10
Issue number1
DOIs
Publication statusPublished - Jan 1988

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Keywords

  • composites
  • fatigue
  • fatigue crack propagation
  • glass-fibre composite
  • glass-sphere composite
  • injection moulding
  • morphological effect
  • polybutylenterephthalate

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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