Analysis of influence factors on mechanical properties of epoxy/carbon fiber composite-molded products
The influence of molding process parameters on the mechanical properties of carbon fiber/epoxy sheet-molded products was studied through orthogonal experiments,and the influence trend of various process parameters on their ten-sile strength and flexural strength was analyzed.The influence of process parameters on the tensile strength was obtained by variance analysis in an increasing order of:clamping speed>molding temperature>molding pressure>holding time,and the influence of process parameters on bending strength was obtained in an increasing order of:clamping speed>molding pressure>molding temperature>holding time.Moreover,the significance factors affecting the ten-sile strength and flexural strength were also obtained.The tensile failure mode and failure mechanism were studied,and the typical samples were selected for observation using the K-mean method.The results indicated that the bonding de-gree between the matrix and epoxy resin affected the tensile strength of the molding products.