Composite penetrator with enhanced lateral efficiency and based on active material and inert material

The invention discloses a composite penetrator with enhanced lateral efficiency and based on active materials and inert materials, and relates to the technical field of penetrators with enhanced lateral efficiency. The penetrator with enhanced lateral efficiency comprises a front-section penetrator, a tail-section penetrator and one or more middle-section penetrators arranged between the front-section penetrator and the tail-section penetrator, wherein the front-section penetrator, the middle-section penetrators and the tail-section penetrator are in butt joint coaxially and sequentially, each of the front-section penetrator, the middle-section penetrators and the tail-section penetrator comprises a corresponding shell, a corresponding inner core and a corresponding sandwich part arranged between the corresponding shell and the corresponding inner core which are coaxially arranged in a sleeved mode, notch grooves are distributed in the outer walls of all the shells correspondingly, all the shells are made of