Pearl layer bionic toughening structure between high-speed impact resistant wave-transparent composite material layers and simplified preparation process thereof

The invention relates to the technical field of composite materials, in particular to a pearl layer bionic toughening structure between high-speed-impact-resistant wave-transparent composite material layers and a simplified preparation technology of the pearl layer bionic toughening structure. The nacre bionic toughening structure comprises an upper-layer composite material, a lower-layer composite material and a material layer, wherein the material layer is formed by a low-dielectric lamellar material and a resin matrix between the upper-layer composite material and the lower-layer composite material; the interlayer performance is improved; and the interlayer nacre bionic toughening structure is a high-performance soft-hard alternate nacre structure which is similar to shells in the nature and has a high-performance soft-hard alternate nacre structure. The interlayer toughening structure has excellent interlayer performance, can improve the overall critical energy release rate of the material, effectively in