The strength degradation mechanism of single fiber composite under water environment-prediction method of residual fiber strength using crack propagation model

Masahiro Kotani*, Hiroyuki Kawada

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The material properties of fiber reinforced plastics (FRP) are strongly influenced by reinforcement fiber, so the strength degradation of the reinforcement is an important issue from a view point of long-term durability. For such purpose, present research focuses on the fiber strength degradation behavior of single fiber composite (SFC) specimen to quantify the strength degradation. The constant strain tests using the SFC specimen in water environment at various temperatures were conducted to reproduce the SCC of GFRP. Fragmentation test was conducted after the constant strain test, and the distribution of the residual strength of embedded fiber was obtained. It was clarified that the fiber strength degradation was to progress with higher strain, with time and was to accelerate dramatically at higher water temperature. Additionally, the degradation of the glass fiber strength has been quantified on the basis of microscopic SCC of the initial defects on the fiber surface using the sub-critical crack growth model.

本文言語English
ホスト出版物のタイトルProgress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008
ページ135-138
ページ数4
出版ステータスPublished - 2008 12 1
イベント6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008 - Kumamoto, Kyushu, Japan
継続期間: 2008 9 232008 9 26

出版物シリーズ

名前Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

Conference

Conference6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008
国/地域Japan
CityKumamoto, Kyushu
Period08/9/2308/9/26

ASJC Scopus subject areas

  • セラミックおよび複合材料

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