Study on the influence of fiber layering on the tensile properties of carbon fiber composites

Abstract

In order to study how the tensile properties of carbon fiber composites change under different layering angles and layering sequences, this paper analyzed the tensile process of CFRP laminates under six different layering modes by using numerical simulation method based on ABAQUS finite element software, and compared the major tensile mechanical properties parameters of CFRP laminates under different layering modes. For example, tensile strength, tensile stiffness, and other physical quantities can measure the mechanical properties of the laminates, and finally obtain a reasonable laminate way that can effectively improve the tensile properties of CFRP laminates. The simulation results show that, under the premise that the number of CFRP laminates is certain, the 0° laminates should be placed on the outside of the laminates as far as possible, and the proportion of 0° laminates should be increased appropriately, which can effectively improve the longitudinal tensile strength of the laminates. The tensile stiffness of laminates can be increased by the existence of positive symmetric or antisymmetric laminates.