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Notch Sensitivity of different Glass Fibers Reinforced Polyester and Epoxy Matrix Composites

Research Authors
Elsayed A Elbadry, GA Abdalla, M Aboraia, EA Oraby
Research Year
2017
Research Journal
4th International Conference on Advanced Sciences (ICAS4)
Research Publisher
4th International Conference on Advanced Sciences (ICAS4)
Research Vol
NULL
Research Rank
3
Research_Pages
NULL
Research Website
http://icas4.webs.uvigo.es/
Research Abstract

This research compares the notch sensitivity of two different glass fibre including short and plain-woven glass fibres reinforced with unsaturated polyester and epoxy matrix composites fabricated by the hand lay-up technique. This was carried out through open hole tension tests at different ratios of the specimen hole diameter to the specimen width with three different values (0.1, 0.2, 0.5) compared to the unnotched specimen. The notch sensitivity of these composites was evaluated using the residual tensile strength by the application of Whitney-Nuismer mathematical model. The results indicated that the characteristic distance of woven glass fiber polyester composites is lower than that of short glass fiber polyester composites composites for different D/W ratios. Therefore, the notch sensitivity of woven glass fiber polyester composites is higher than that of short glass fiber polyester composites. On the other hand, In epoxy-matrix composites, the characteristic distance of woven glass fiber epoxy composites is higher than that of short glass fiber epoxy composites for different D/W ratios. Therefore, the notch sensitivity of woven GF epoxy composites is less sensitive than short GF epoxy composites.