Stress corrosion cracking of woven GFRP laminates under acid stress environment

Hiroyuki Kawada, Hironori Ueno, Kazuhiro Onodera

研究成果: Article査読

抄録

This paper presents stress corrosion cracking (SCC) of woven GFRP laminates under an acid stress environment. The threshold stress intensity factor KISCC for the stress corrosion cracking was determined by cumulative stress decrement tests. Based on a fractographic observation, it is found that the progression of corrosion at the weft fiber strand and matrix crack leads to the crack propagation of the warp fiber strand and that the fracture surfaces at each crack propagation rate are different due to the combined effect of chemical reaction and stress state. The crack propagation rate is possible to be estimated from a microscopic fracture model of the warp fiber strand. The crack propagation rate calculated by using this model agrees with the experimental value. It is confirmed that the proposed model is appropriate for evaluating the crack propagation rate of GFRP in acid stress environment.

本文言語English
ページ(範囲)374-379
ページ数6
ジャーナルZairyo/Journal of the Society of Materials Science, Japan
46
4
DOI
出版ステータスPublished - 1997

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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