Studies on mechanical properties of Random and woven fibre sunhemp Polyester composites

Abstract

Engineering materials in general is isotropic having the same newlineproperties such as strength and modulus in any direction Grain boundary may newlinebe present in some metals due to their manufacturing methods adopted but it newlineis only in critical applications that this needs consideration Composites newlinehowever are anisotropic and will have very different properties in different newlinedirections since the matrix material is isotropic whereas the reinforcement is newlinenot The properties of the composite will reflect the properties of the newlinereinforcement so that it can have greatly different properties in different newlinedirections This is exploited in design as component and structures are rarely newlinerequiring equal strength and stiffness in all directions The composites can newlineachieve this by particular arrangements of the reinforcement newlinePolymer matrix composites can be used for metal replacement but newlinethere are key property differences which mean that directed substitution newlineshould be subject to material selection of a materials expert newline newline