Global and local nanofibrous interlayer toughened composites for higher in-plane strength
Bilge, Kaan and Venkataraman, S. and Menceloğlu, Yusuf Z. and Papila, Melih (2014) Global and local nanofibrous interlayer toughened composites for higher in-plane strength. Composites Part A: Applied Science and Manufacturing, 58 . pp. 73-76. ISSN 1359-835X
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Official URL: http://dx.doi.org/10.1016/j.compositesa.2013.12.001
Epoxy compatible P(St-co-GMA) copolymer based nanofibrous mats are introduced by electrospinning onto uni-directional (UD) and 0/90 twill weave carbon fiber/epoxy prepreg systems as interlayers. Anticipated in-plane strength improvement via higher matrix cracking resistance at the free edges, nanofibrous interlayered composites are verified by uni-axial tension tests on (0)6 and (0/90)6woven laminates. The ultimate tensile strength of the (0)6 laminates increased by 12%, whereas the tensile strength of the woven fabric composites increased by 18%. A localized interlayer reinforcing approach where the interlayers are incorporated at the vicinity of the hole is evaluated via open hole tension (OHT) tests of (0/90)6woven laminates. The OHT strength increased by 9%.
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