저속 충격시 보강 형태에 따른 원통쉘의 충격 특성 연구

Cylindrical shell structure is frequently used in the aerospace, ship and ether engineering structures. The stiffener is used in order to increase of strength of the shell structure. The object of this parer is the investigation of the impact characteristics of the stiffened cylindrical shell under low-velocity impact using various stiffener shares. The stringer, ring and orthogonal stiffener are design variables of the stiffened cylindrical shell, The ABAQUS/Explicit version 6.4 is used for the finite element analysis. Finally, we suggest the optimized stiffener shape which has highest strength to low-velocity impact.