Abstract:In order to study the effect of fiber wrinkle on the compression properties of carbon fiber composite laminates, the compression properties of carbon fiber laminates containing fiber wrinkle were tested according to ASTM D6641-2014 standard. Meanwhile, the progressive damage method based on Hashin failure criterion and property gradual degradation was analyzed by finite element method. The results show that the ultimate compression load of the sunken test piece with 30% wrinkle is 58.48% lower than that of the intact test piece. The compressive strength of sunken test pieces is lower than that of raised test pieces under the same degree of wrinkle. The stiffness of the sunken test piece with 30% wrinkle is 35.80% lower than that of the intact test piece. The finite element analysis results are in good agreement with the test results, the initial damage is matrix damage, and the test piece finally fractures at the wrinkle after expansion.