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论文类型：会议论文

发表时间：2016-06-26

收录刊物：EI

摘要：The physical and mechanical properties of carbon fiber reinforced plastics (CFRPs) are dependent largely on the fiber content, the fiber orientation, and the cross-section shape of fibers. Generally, the cross-section shape of the reinforcing fibers in composites is round-shape. However, from the viewpoint of structural mechanics, it is recognized that non-round-shape fiber will do well than round-shape fiber in mechanical properties of CFRPs, because the non-round-shape carbon fibers have higher specific surface area than the conventional round-shape carbon fibers. Besides, for composites reinforced by triangle-shape carbon fibers, the fibers in the composites can reflect incidence microwave many times as its microstructure can work like anechoic chamber, contributing to higher absorbing ratio of electro-magnetic wave. In order to reveal the effect of triangle-section fiber on the mechanical properties of CFRPs, micromechanical model of the composites based on representative volume element (RVE) was developed in this paper. The mechanical properties and damage behavior of unidirectional triangle-section fiber-reinforced polymer composites under transverse tension and compression were simulated. The simulation results clearly reveal the microscopic damage mechanisms of the triangle-section fiber-reinforced polymer composites. © 2016, European Conference on Composite Materials, ECCM. All rights reserved.