Mechanical Behavior and Fracture Mechanism of Thermoplastic Composites with Commingled Yarn

Abstract

Commingled yarn has been developed in order to overcome the difficulties that are experienced when thermoplastic materials are impregnated to reinforce composite materials. Braid is one of the preforming techniques in the reinforcement configuration of composite materials. In this article, tensile properties of thermoplastic braided composites with commingled yarn as structural members are discussed. It is clear that the molding of thermoplastic braided composites with commingled yarn could be performed in compara tively low molding pressure and short holding time. The middle-end-fiber and axial fiber were used to raise the tensile strength of thermoplastic braided composites. Thermoplastic braided composites with the commingled yarn-using glass fiber bundle as middle-end- fiber and axial fiber—had superior tensile properties.