Experimental Investigation of Static Mechanical Properties of Epoxy Based Glass, Carbon & Sisal Woven Fabric Hybrid Composites

Abstract

In recent years, composite materials widely involved replacing the metals to increase the strength at minimal weight. Synthetic fiber reinforced polymer composites are widely used many application like aircraft, automobile etc. Due to increasing demand for the synthetic fiber, because of its light weight and easily biodegradable, Natural fiber are involved in achieving good strength to weight ratio. In present work sisal fiber reinforced polymer composite SFRP was used to replacing the two synthetic composite such as carbon fiber reinforced polymer composite CFRP and glass reinforced polymer composite GFRP. All laminates are fabricated by using hand layup method. The static mechanical properties of epoxy based SFRP, GFRP, CFRP and their hybrids laminates are experimentally evaluated as per ASTM standards and reported. Introduction. Investigated the mechanical properties of sisal, jute and glass fiber reinforced polyester composites observed that the addition of glass fiber into jute fiber composite resulted in maximum tensile strength and that jute and sisal mixture composites sample is capable having maximum flexural strength and maximum impact strength was obtained. [4]. The variation of tensile strength, flexural strength and compressive strength of epoxy based sisal-glass hybrid composites have observed that 2 cm fiber length hybrid composites showed maximum optimal tensile, flexural and compressive strength than 1 and 3 cm. The effect of alkali treated hybrid composites showed higher strength than untreated composites [2]. Increase in NaOH concentration worsens the tensile properties of the natural fiber and also higher concentration enhances the surface characteristics of the fiber by removing the waxy layer from the surface and the fiber matrix interfacial adhesion. So 6% NaOH is the optimum concentration which provides acceptable fiber strength and surface characteristics [8]. The application of composites in structural facilities is mostly concentrated on increasing the strength of the structure with the help of artificial fibers and does not address the issue of sustainability of these raw materials used for strengthening purposes [6].