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Interlaminar tensile strength of different angle-ply CFRP composites
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1-s2.0-S2452321619305761-main.pdf
Date
2019-01-01
Author
Yavuz, Burak Ogun
Parnas, Levend
Çöker, Demirkan
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Due to high specific strength and modulus requirements, demand for the use of polymer-based composites in structural applications has been increasing more than ever. On the other hand, their interlaminar properties are known to be relatively weak. Such structures are prone to interlaminar failures including delaminations under static or impact loads. Interlaminar tensile strength (ILTS) is one of the interlaminar properties which gives an indication of delamination onset in through the thickness loading for composite structures, while fracture toughness is another property which gives information about the propagation of delamination. Conventionally ILTS value which is experimentally obtained specifically for 0 degrees//0 degrees interface according to ASTM International D 6415/D 6415 M (2013) is used in design and analysis even for interfaces with different ply orientation. In this paper, our objective is to investigate the effect of ply orientation on the ILTS for CFRP. For this purpose, curved beam strength (CBS) experiments are conducted on CFRP 0 degrees//0 degrees, and 45 degrees//-45 degrees interfaces. It is found that for CFRP laminates 0 degrees//0 degrees ILTS is significantly higher than the other orientation. (c) 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the 1st International Workshop on Plasticity, Damage and Fracture of Engineering Materials organizers
Subject Keywords
ILTS
,
CBS
,
CFRP Composite
URI
https://hdl.handle.net/11511/38522
DOI
https://doi.org/10.1016/j.prostr.2019.12.102
Collections
Department of Aerospace Engineering, Conference / Seminar