Experimental Study on High-velocity Impact Damage Behavior of Carbon Fiber Reinforced Composite Laminates

摘要

Carbon fiber reinforced composite laminates are widely used in the field ofaerospace. Service environment of all kinds of aircraft makes the airframe vulnerableto impact loads. In this paper, the damage behavior of laminates under impact loadingwas studied by experimental method of gas gun impact tests. Taking intoconsideration the different impact conditions that include attitudes, shapes, velocityand others of the projectile during the tests, we summarized the basic failure processand typical damage modes. The main mechanism of the different fracture modesformed in the period of early penetration was obtained by comparing the damagemorphology. Through this work, we will achieve understanding of the interactionbetween shape of projectile and damage behavior, which is of great importance forthe simplification of analysis methods for impact problems.