Prediction of strength degradation of glass fiber under water environment using sub-critical crack growth model

Masahiro Kotani*, Hiroyuki Kawada

*この研究の対応する著者

研究成果: Paper査読

抄録

The mechanical properties of FRP are mainly dominated by the fiber-reinforcement and therefore practically influenced by the strength degradation of the glass fiber. In this paper, the strength degradation of embedded E-glass fiber in the single fiber composite (SFC) has been investigated under constant strain in water environment to represent the SCC of GFRP. The strength degradation of the embedded glass fiber was ascertained by fragmentation test after the constant strain test. It was clarified that the fiber strength degradation was to accelerate dramatically at elevated 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. The proposed model showed good agreement with the fiber strength distribution from various experimental results.

本文言語English
出版ステータスPublished - 2008 12 1
イベントUS-Japan Conference on Composite Materials 2008, US-Japan 2008 - Tokyo, Japan
継続期間: 2008 6 62008 6 7

Conference

ConferenceUS-Japan Conference on Composite Materials 2008, US-Japan 2008
国/地域Japan
CityTokyo
Period08/6/608/6/7

ASJC Scopus subject areas

  • セラミックおよび複合材料

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