The Impact Damage and Medium Leakage of CFRP Laminates with Different Thickness

Abstract

Abstract. The effects of thickness and impact energy on the impact damage and the medium leakage of CFRP laminates were studied in this paper. Impact tests for the CFRP laminates with the size of 600 mm×700 mm with five different thicknesses were subjected to the impact energy levels from 5 J to 65 J. The matrix length was investigated according to different energy levels and different thicknesses. The experimental results reveal that the crack length increases linearly with the increasing impact energy. For the same impact energy, the crack lengths decrease with the increasing specimen thickness. The impact energy initial value of medium leakage increases with the increasing thickness. The impact energy initial value of aviation kerosene leakage is about 6.7416 times of the thicknesses of laminates, which is coordinate with the experience value of 6.75 times.