Effects of fiber volume fraction on unidirectional kenaf/epoxy composites: the transition region
Abdullah, Abdul Hakim and Abdan, Khalina and Ali, Aidy (2011) Effects of fiber volume fraction on unidirectional kenaf/epoxy composites: the transition region. Polymer-Plastics Technology and Engineering, 50 (13). pp. 1362-1366. ISSN 0360-2559; ESSN: 1525-6111
Official URL: http://www.tandfonline.com/doi/abs/10.1080/0360255...
This article presents the effects of fiber volume fraction on the existence of a transition region in unidirectional kenaf/epoxy composites. The composites were made from hand Lay-up techniques, with three formulations of fiber volume fraction employed: 0% (neat), 15% and 45%. The results showed that tensile properties such as tensile strength and modulus of elasticity increased as the fiber volume increased. The stress-strain curves showed that the kenaf/epoxy composites exhibited bi-linear responses with reductions in the modulus of elasticity. Surface morphology aided by a scanning electron microscope (SEM) revealed that the reduction in the modulus of elasticity was due to matrix cracking.
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