作　　者： ; ; ; (周晶晶）;

机构地区： 华中科技大学船舶与海洋工程学院

出　　处： 《固体力学学报》 2003年第4期391-398,共8页

摘　　要： 分析了受面内冲击载荷下加筋板的非线性弹性动态屈曲 .考虑板与筋的膜力 ,忽略面内位移 ,运用Hamilton变分原理 ,得出非线性控制方程 ,采用双级数形式的挠度假设 ,由Galerkin方法得到离散方程组 ,根据B R准则 ,判断加筋板的动态屈曲 . This paper presents a solution of the nonlinear dynamic buckling of stiffened plates under fluid-solid impact loading. Based on the larger deflection theory and the discretely stiffened plate model, the tangential stresses of the stiffeners and in-plane displacement are neglected, and then applied to the Hamilton's principle, the motion equations of stiffened plates are obtained at last. The deflection of the plate is taken as Fourier series, and the discretely equations can be got by the Galerkin method, which can be solved easily by runge-kutta method. The dynamic buckling loadings of the stiffened plates are obtained based the B-R criterion.

关 键 词： 加筋板 冲击载荷 动态屈曲 哈密顿变分原理 挠度 固体力学 应力函数

领　　域： [理学] [理学]