Citation

Johar, Mahzan and Israr, Haris Ahmad and Low, Kean Ong and Wong, King Jye (2017) Numerical simulation methodology for mode II delamination of quasi-isotropic quasi-homogeneous composite laminates. Journal of Composite Materials, 51 (28). pp. 3955-3968. ISSN 0021-9983

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Abstract

This work proposed a methodology to obtain the lamina and interface properties using minimal experimental works. Studies were limited to mode II delamination behavior of three quasi-isotropic quasi-homogeneous woven glass/polyester composites. It was found that the fracture toughness of 0//0, 0//45, and 45//45 laminates calculated using experimental calibration method were 0.91 N/m, 0.94 N/m, and 0.51 N/m, respectively. In addition, fiber twisting and shear cusps were observed on the delaminated surfaces of 45°-ply. Subsequently, a methodology was proposed to obtain the lamina properties for the numerical simulation without performing any additional experiment. An approach to account for the shear nonlinearity of the composite laminate due to the existence of 0°-ply was also presented. Finally, it was proposed that for reliable numerical modeling using cohesive zone model, the following parameters were recommended: penalty stiffness = 3 × 106 MPa/mm, interface shear strength = 65 MPa, mesh size = 0.5 mm, and viscosity parameter = 1 × 10−3.

Item Type:	Article
Uncontrolled Keywords:	Interlaminar fracture, ply orientation, quasi-isotropic quasi-homogeneous, scanning electron micrographs, cohesive zone modeling
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:	28 Jul 2020 03:00
Last Modified:	28 Jul 2020 03:00
URII:	http://shdl.mmu.edu.my/id/eprint/6983

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