Mechanical Properties of Unsaturated Polyester-Based Plain Structured Glass Fiber-Carbon Fiber Hybrid Composites

Abstract The tensile strength of unsaturated polyester based glass–carbon woven fabric hybrid composites with plain woven fabric of glass fibers and combination of glass and carbon fibers were examined. The tensile strength of the plain woven glass fiber composites has been found to be higher than that of the the matrix. A combined effect of glass and carbon fibers on the mechanical properties of the hybrid composites has also been studied. Significant improvement in tensile strength of the glass-carbon fibers hybrid composites has been observed compared to glass fiber composites and the matrix. The morphological changes of the composites and the matrix were studied by scanning electron microscopy. Keywords: Carbon fiberGlass fiberHybrid compositesMechanical strengthMorphologyUnsaturated polyester ACKNOWLEDGMENT The authors would like to thank Dresden University of Technology for providing carbon fiber samples.