自锁结构设计及力学性能研究进展OA

The self-locking structure achieves interlocking property through ingenious design of the connection mode between cells,which enables the cells to lock with each other without the need for any additional constraints.The self-locking structure possesses significant advantages,such as light weight,portability,rapid assembly,and disassembly.Therefore,this structure is widely applied in various fields,such as shock resistance and explosion prevention.Self-locking structures exist in many structures in nature.The design concepts of self-locking structures are introduced from three aspects:the inspiration from biomimetic self-locking structures,the energy absorption mechanism of periodic structures,and failure of shear bands in periodic structures.The research progress of two-dimensional unidirectional self-locking structures,three-dimensional multi-directional self-locking structures and curved self-locking structures are then respectively introduced based on the classification of self-locking direction.Among them,the multi-directional self-locking structure withstands more complex loading conditions.Therefore,research progress of three representative multi-directional self-locking structures based on dumbbell-type,bone stitching,and origami design are further introduced.Finally,the research on the self-locking structure is summarized,and its future research prospects are discussed.