Citation

Johar, Mahzan and Israr, H. A. and Wong, King Jye and Low, Kean Ong (2018) Mode I and mode II delamination of a chopped strand mat E-glass reinforced vinyl ester composite. Plastics, Rubber and Composites, 47 (9). pp. 391-397. ISSN 1465-8011

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Abstract

The objective of the present work is to investigate mode I and mode II delamination behaviour of chopped strand mat (CSM) E-glass reinforced vinyl ester (VE) composite. Double cantilever beam and end notched flexure tests were carried out to evaluate the mode I and mode II delamination, respectively. The fracture toughnesses were calculated using the experimental calibration method. Results showed that the average mode I and mode II fracture toughnesses were 185 and 2386 N m−1, respectively. Furthermore, the mode II–mode I ratio for this material was 12.9. This value was the highest when compared with other composite materials from the literature. Finally, through scanning electron micrographs, the dominant failure mechanisms were found to be matrix cracking, fibre debonding and fibre breakage. In addition, shear cusps were observed in mode II specimen, which signified the shearing between the layers.

Item Type:	Article
Uncontrolled Keywords:	Composite materials—Delamination, Chopped strand mat E-glass, vinyl ester, double cantilever beam, end notched flexure, fracture toughness, R-curve, scanning electron micrograph
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	08 Nov 2020 18:02
Last Modified:	08 Nov 2020 18:02
URII:	http://shdl.mmu.edu.my/id/eprint/7268

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