Abstract: In this paper, the finite element model of the composite laminates with holes is built by ABAQUS. Laminated plates with simply supported edges under axial pressure loads, the effects of d/w, ply proportion, lay-up angle, material properties on buckling load were analyzed. The results show that the bigger the d/w, the smaller the buckling load. When d/w is less than or equal to 0.1, it is considered to be a small hole. When the proportion of the 90° is larger, the ratio of the 0 degree is smaller, the buckling load is larger, and the ratio of the 45° is increased, and the anisotropy degree of laminated plate is decreased. The lay-up angle has a great influence on buckling load, the difference between the maximum and the minimum value is 13.05N. The main directional parameters of the material are different, the buckling load also has a big difference, and the performance parameters of the material have obvious influence on the buckling load.

Key words: composite laminates with holes, finite element model, structure parameter, buckling