ON DYNAMIC BUCKLING OF LIQUID-FILLED CYLINDRICAL SHELL UNDER AXIAL IMPACT

摘要

In this paper, theoretical analysis and numerical calculation for the dynamic buckling of liquid-filled cylindrical shell under axial impact are carried out. Based on the theory of thin-walled cylinder and the hardening model of rigid-plasticity, the nonlinear dynamic equation is obtained. The number of half-waves is calculated. The computer simulation of liquid-filled cylinder with axial impact is made. The computation is finished with FEM software LS-DYNA and MARC. The rule of buckling mode is analyzed.