Comparative Analysis of the Size of Glass Fiber Woven Roving based on a Polyester Matrix on the Impact Strength of Composite Materials

M. Fajar Lazuardy, Muhammad Fakhruddin

Abstract

Laminated Glass Fiber Reinforced Polymer (GFRP) composites are widely used in various industries, such as boat building, car bodies, water tanks and pipelines, which in their use sometimes have the potential to be exposed to sudden loads, especially in transportation equipment. Therefore, it is necessary to perform an impact test to determine the toughness value of a composite material against impact loads. The purpose of this study is to investigate the characteristics of fiberglass woven roving (WR)/polyester composites produced by the compression molding process to determine the toughness of the composite material with respect to changes in weave size. This research uses variations of glass fiber woven roving in sizes of 200 gsm, 400 gsm, 600 gsm with . The impact test was conducted in accordance with ASTM (American Society for Testing Materials) D 6110. The impact test result showed that the lowest impact strength value is found in composite with the woven size 200 gsm, which is 0,145 J/mm2, and the highest impact strength value is found in composite with the woven size 600 gsm, which is 0,280 J/mm2.

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DOI: https://doi.org/10.20961/mekanika.v23i1.76695

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