Influence of resin content on mechanical properties of composite laminates

Abstract

The resin content has an important effect on the mechanical properties of composite laminates. In order to study the influence of different resin content on the mechanical properties of composite laminates, the mechanical properties of the standard samples of carbon fiber composite laminates with resin content of 30, 35, 40, 45, and 50% have tested, and the fracture regions of the samples have scanned by scanning electron microscope. The test results show that the tensile strength of the carbon fiber composite laminates increases first and then decreases with the change of resin content. When the resin content is 35%, the tensile strength reaches the maximum. Moreover, the elastic modulus decreases with resin content.