A Study on Buckling Behavior of Composite Sheets Reinforced by Hybrid Woven Fabrics

Abstract

To achieve a particular property, it is possible to mix two or more materials in form composites. In this study, to obtain superior characteristics, new composites are made with multi components reinforcement. In this study in order to improve the interface properties and brittleness of the Glass/Polyester composites, glass woven fabrics are modified with use of more elastic yarns of polyester. Polyester yarns are located either parallel to glass yarns or perpendicular to them. In this way a new fabric made of Glass and Polyester fibers are manufactured. Fabrics are manufactured in form of cross-plies or unidirectional plies in order to make superior hybrid laminated composites. A Comparison between the buckling behaviors of hybrid composites with glass woven composites shows that in similar conditions, use of hybrid fabrics increases the buckling strength increasingly. Also high resilience of polyester yarns in hybrid fabric composites returns the sample after failure nearly to its original shape.