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Mode I delamination behaviour of carbon/epoxy composite at different displacement rates

Low, K. O. and Teng, S. M. and Johar, M. and Israr, H. A. and Wong, K. J. (2019) Mode I delamination behaviour of carbon/epoxy composite at different displacement rates. Composites Part B: Engineering, 176 . p. 107293. ISSN 1359-8368

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Official URL: http://dx.doi.org/10.1016/j.compositesb.2019.10729...

Abstract

This research studies the displacement rate effects on the mode I delamination of unidirectional carbon/epoxy composites. Double cantilever beam test is conducted at 1, 10, 100 and 500 mm/min. Results show that the mode I fracture toughness is invariant within the range of study. Scanning electron micrographs depict that interfacial debonding dominates at 1 mm/min. However, at 500 mm/min, river pattern is observed. Besides, there is no bridging effect at all displacement rates. In addition, the experimental and numerical force-displacement curves are well compared with a maximum difference of 14%. Finally, the experimental and numerical crack growths are comparable within 15% of variation.

Item Type:Article
Uncontrolled Keywords:Delamination, Mechanical testing
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:88253
Deposited By: Widya Wahid
Deposited On:15 Dec 2020 00:19
Last Modified:15 Dec 2020 00:19

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