DYNAMIC BUCKLING OF ELASTIC-PLASTIC CYLINDRICAL SHELLS UNDER AXIAL TWO PARAMETERS IMPULSIVE LOADING
两参数轴向冲击载荷作用下圆柱壳弹塑性动力屈曲

The inelastic dynamic buckling of cylindrical shells under axial two parametersimpulsive loading is discussed. The basic equations of structure are derived from a minimumprinciple in dynamics of elastic-plastic continua at finite deformation and the flow theoryof plasticity is employed. Two phases(a pre-critical and post-critical phase)can be distin-guished at an early stage of dynamic buckling of inelastic shell.The effects of peak valueand during time of loading, initial imperfections, geometric dimensions, materiai parame-ters, compression and bend wave to the dynamic buckling behaviour of cylindrical shellsunder axial two parameters loading are discussed.