机构地区: 上海交通大学船舶海洋与建筑工程学院
出 处: 《上海交通大学学报》 1997年第11期106-111,共6页
摘 要: 基于圆柱壳与液流场相互作用的流固耦合运动条件和大挠度变形理论,研究无限长圆柱壳在水下爆炸冲击载荷作用下的弹塑性动力响应问题.采用对位移和作用力进行Fourier级数展开的方法来分析圆柱壳的弹塑性行为,用四阶Runge-Kuta方法进行数值计算,得到水下圆柱壳在爆炸冲击载荷下弹塑性动力响应的规律. The elastoplastic dynamic response of an infinite cylindrical shell to underwater explosive loading is proposed. According to the theory of fluid solid coupling and finite deformation of the cylindrical shell, the method of Fourier decomposition for the deflection and stresses is applied to the analysis of elastoplastic motion of the cylindrical shell, and equations are solved by a fourth Runge Kutta integration procedure. The analytical solution is obtained in the end.
领 域: [天文地球]