Damage detection and self-repair in hollow glass fiber fabric-reinforced epoxy composites via fiber filling

Sándor Kling, Tibor Czigány

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Hollow glass fiber reinforced epoxy matrix composites were produced to study whether the damage development can be followed and the self-repair can triggered by filling the fibers with suitable additives. Composite plates were manufactured by the hand layup and vacuum assisted resin transfer molding techniques. To detect subcritical transverse impact damage, hollow fibers were filled with an ultraviolet fluorescent dye, whereas for self-repair, they were filled with a polyester resin along with the corresponding accelerator. The healing process was induced at different temperatures and continued for different durations. It was demonstrated that the targeted damage detection and self-repair can be achieved using thin (10-13. μm outer diameter) reinforcing hollow fibers. The self-repairing ability was demonstrated in three point bending tests and the healing was confirmed by inspection with scanning electron microscopy.

Original languageEnglish
Pages (from-to)82-88
Number of pages7
JournalComposites Science and Technology
Volume99
DOIs
Publication statusPublished - Jul 30 2014

Keywords

  • A. Polymer-matrix composites (PMCs)
  • A. Smart materials
  • B. Impact behaviour
  • B. Strength
  • Hollow fiber self-repairing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering(all)

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