Abstract
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.
Original language | English |
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Publication status | Published - 2008 Dec 1 |
Event | US-Japan Conference on Composite Materials 2008, US-Japan 2008 - Tokyo, Japan Duration: 2008 Jun 6 → 2008 Jun 7 |
Conference
Conference | US-Japan Conference on Composite Materials 2008, US-Japan 2008 |
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Country | Japan |
City | Tokyo |
Period | 08/6/6 → 08/6/7 |
Keywords
- Fiber strength
- GFRP
- SCC
- Water environment
ASJC Scopus subject areas
- Ceramics and Composites