摘要
研究了轴向时变冲击载荷作用下的圆柱壳非轴对称弹塑性动力屈曲问题．采用Ｋａｒｍａｎ－Ｄｏｎｎｅｌ运动方程，本构关系采用增量理论，借助增量数值计算方法求解运动方程．计算表明：初始屈曲发生时，圆柱壳的变形模态呈轴对称性形式，而屈曲发生到一定程度时，圆柱壳就会发生非对称性的变形，而且变形相当明显．
The Karman Donnel kinetic equation is used to study the problem of the
elastic plastic dynamic buckling of cylindrical shells under axial dynamic loads. The increment
theory is applied to the constitution of material and the increment numerical method is used to
solve the kinetic equations. Before the buckling of the cylindrical shells, the dynamic buckling
modes are axisymmetic, while after the buckling, the deformation form of the structure is
asymmetric.
出处
《华中理工大学学报》
CSCD
北大核心
1999年第4期95-97,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金
关键词
圆柱壳
轴向冲击
非对称屈曲
屈曲
冲击载荷
cylindrical shell
axial impact
elastic plastic dynamic buckling
