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Effect of ply lay-up and curing pressure on void content in GFRP laminates of unsaturated polyester resin-reinforced woven E-glass fibers

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Abstract

This paper describes a laminate curing process by hand lay-up of plain-weave woven Glass fiber-reinforced polymer (GFRP) composite composed of unsaturated polyester resin reinforced with E-glass fiber fabric, EWR-600B. Symmetrical and non-symmetrical ply orientation arrangements were introduced with respect to different curing pressures to produce consistent composite panels according to the British standard code: BS 1268 (2001) for evaluations of void content and physical properties. Quantitative analysis of volume and weight fractions and void volume content were investigated according to the ASTM code: D 2734. Woven GFRP composites fabricated under different curing pressures of 351.2 (35.8 kg/m2), 687.7 (70.1 kg/m2), 1020.2 (104 kg/m2) and 1355.7 Pa (138.2 kg/m2) showed minimal significant effect on volume and weight fractions of symmetrical and non-symmetrical ply lay-up arrangement, whereas 4 % void content still fulfilled the limit of medium quality composite.

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Correspondence to Yeo Kiam Beng.

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Recommended by Editor Chongdu Cho

Yeo Kiam Beng is a Professor in Mechanical Engineering of Faculty of Engineering, Universiti Malaysia Sabah, Sabah, Malaysia. He received his doctoral degree in Mechanical Engineering in 1993 from Imperial College of Science, Technology, and Medicine, London, United Kingdom. He is also the Head of the Advanced Composite Materials Research Group specializing in the field of fracture mechanics.

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Beng, Y.K., Dalimin, M.N., Salit, M.S. et al. Effect of ply lay-up and curing pressure on void content in GFRP laminates of unsaturated polyester resin-reinforced woven E-glass fibers. J Mech Sci Technol 31, 5779–5784 (2017). https://doi.org/10.1007/s12206-017-1120-2

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  • DOI: https://doi.org/10.1007/s12206-017-1120-2

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