Dynamic Buckling of Stiffened Plates Under Fluid-Solid Impact Load
-
摘要: 分析了流固冲击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Budiansky-Roth(B-R)曲线，判断加筋板的动态屈曲．Abstract: A simple solution of the dynamic buckling of stiffened plates under fluid-solid impact loading is presented.Based on large deflection theory,a discretely stiffened plate model has been used.The tangential stresses of stiffeners and in-plane displacement are neglected.Applying the Hamilton's principle,the motion equations of stiffened plates are obtained.The deflection of the plate is taken as Fourier series,and using Galerkin method the discrete equations can be deduced,which can be solved easily by Runge-Kutta method.The dynamic buckling loads of the stiffened plates are obtained from B-R curves.
-
Key words:
- stiffened plate /
- nonlinearity /
- dynamic buckling /
- fluid-solid impact
-
[1] Zizicas G A.Dynamic buckling of thin plates[J].Trans ASME,1952,74(7):1257—1268. [2] Ari-Gur J,Singer J,Weller T.Dynamic buckling of plates under longitudinal impact[J].Israel J Technol,1981,19:57—64. [3] Weller T,Abramovich H,Yaffe R.Dynamic of beams and plates subjected to axial impact[J].Comp and Struct,1989,32(3/4):835—851. doi: 10.1016/0045-7949(89)90368-4 [4] Petry D,Fahlbusch G.Dynamic buckling of thin isotropic plates subjected to in-plane impact[J].Thin-Walled Structures,2000,(38):267—283. [5] 张清杰，刘土光，郑际嘉，等.结构动力屈曲研究进展[J].力学进展，1993，23(4)：530—538. [6] ZHANG Qing-jie,LI Shi-qi,ZHENG Ji-jia.Dynamic response, buckling and collapsing of elastic-plastic straight columns under axial solid-fluid slamming compression[J].Int J Solids & Structures,1992,(29):381—397. [7] 李世其，张清杰，郑际嘉.矩形薄板流-固冲击屈曲与塑性失效的实验研究[J].力学学报，1993，25(2)：249—255. [8] CUI Shi-jie,CHEONG H K,HAO H.Experimetal study of dynamic buckling of plates under fluid-solid slamming[J].Int J Impact Engng,1999,(22):675—691. [9] CUI Shi-jie,CHEIONG H K,HAO H.Numerical analysis of dynamic buckling of rectangular plates subjected to intermediate-velocity impact[J].Int J Impact Engng,2001,(25):147—167. [10] 张涛，刘土光，赵耀.流固冲击下加筋板非线性瞬态响应[J].爆炸与冲击，2002，22(4)：301—307. [11] 王德禹.受静载作用的直杆在轴向冲击载荷下的屈曲[J].振动与冲击，1997，16(1)：35—37. -
点击查看大图
计量
- 文章访问数: 2066
- HTML全文浏览量: 36
- PDF下载量: 568
- 被引次数: 0
下载:
