An acoustic emission study of flax fiber-reinforced polypropylene composites

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20 Citations (Scopus)

Abstract

Sensitivity to crack propagation in flax fiber-reinforced polypropylene (PP) composites has been examined on SEN-T specimens. The sound waves that arise due to loading have been investigated with the acoustic emission method. Linear functional relationship has been revealed between the number of acoustic events that occur during loading and the fracture toughness. It has also been observed that increase in moisture content influences the mechanical properties unfavorably because water entering the fiber-matrix interface during swelling reduces the interaction. The size of the damage zone has been determined, and it proved to be smaller than in case of glass and carbon fiber-reinforced systems.

Original languageEnglish
Pages (from-to)769-778
Number of pages10
JournalJournal of Composite Materials
Volume38
Issue number9
DOIs
Publication statusPublished - May 28 2004

Keywords

  • Acoustic emission
  • Damage zone
  • Flax fiber
  • Fracture toughness
  • Polypropylene composites

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

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