Review on Delamination and its effects in GFRP Composites

Abstract

Glass Fiber Reinforced Plastics (GFRPs) are the newer process materials for modern high technology products which are finding commercial applications considerably in recent time. The combination of different materials glass fiber and polymer matrix having dissimilar mechanical properties causes a problem in processing due to their heterogeneous structures. GFRP parts are generally assembled together by fastening, which requires drilling hole a common machining process in these parts. Delamination of the GFRP parts is a critical defect because more than 50 percent of rejection of parts occurs due to delamination, so it is important to understand the delamination behaviour. It is seen at the entry and exit of the hole during any machining process. Different parameters and techniques to control the delamination are discussed in this paper in special reference to GFRP composites.