Size effect in fracture of G-11 woven glass-epoxy laminates at 77 K

Kazuaki Sanada, Yasuhide Shindo, Katsumi Horiguchi, Hitoshi Tokairin

Research output: Contribution to journalArticlepeer-review

Abstract

The object of this study is to investigate the size effect and cryogenic fracture characteristics of G-11 woven glass-epoxy laminates. Fracture toughness tests were carried out with compact tension (CT) specimens at room temperature and 77 K. CT specimens with different widths and thicknesses were tested in accordance with ASTM E399-83, ASTM E813-89 and JSME S001. The results showed that the apparent fracture toughness are strongly influenced by specimen size. The damage morphology around the notch tip of tested specimens was characterized using a microscope. The damage occurred with increasing applied load, and the interaction of the damage zone and the size effect in fracture was exhibited.

Original languageEnglish
Pages (from-to)232-237
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume62
Issue number3
DOIs
Publication statusPublished - 1998

Keywords

  • Compact tension specimen
  • Cryogenic fracture mechanics
  • Damage
  • Fracture toughness
  • Size effect
  • Superconducting magnet
  • Woven glass-epoxy laminate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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