Interlaminar fracture characterization of woven glass/epoxy composites under mixed-mode II/III loading conditions at cryogenic temperatures

Masaya Miura, Yasuhide Shindo, Tomo Takeda, Fumio Narita

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

This paper presents a study of the delamination fracture behavior of woven glass fiber reinforced polymer (GFRP) composite laminates under combined Modes II and III loading at cryogenic temperatures. Mixed-mode II/III delamination fracture tests were carried out with six-point bending plate (6PBP) specimens at room temperature, liquid nitrogen temperature (77. K) and liquid helium temperature (4. K). A three-dimensional finite element analysis was also performed to determine the critical energy release rate at the onset of delamination growth, i.e., fracture toughness, and the dependence of the fracture toughness on the temperature and the mixed-mode II/III ratio was discussed. In addition, scanning electron microscopic observations of the fracture surfaces were conducted to examine the cryogenic fracture mechanisms in the woven GFRP laminates under mixed-mode II/III conditions.

Original languageEnglish
Pages (from-to)615-625
Number of pages11
JournalEngineering Fracture Mechanics
Volume96
DOIs
Publication statusPublished - 2012 Dec

Keywords

  • Delamination
  • Finite element analysis
  • Mixed mode fracture
  • Polymer matrix composites
  • Toughness testing

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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