南京航空航天大学学报2018，Vol.50Issue(1)：1-10,10.DOI:10.16356/j.1005-2615.2018.01.001
任意铺层复合材料加筋板屈曲/后屈曲行为的解析解
Analytical Solution for Buckling and Postbuckling Behavior of Stiffened Arbitrary Laminated Composite Panels
摘要
Abstract
An analytical solution for the buckling and postbuckling behavior of stiffened arbitrary laminat-ed composite panels is presented.The stiffened composite panels are modeled as panels with elastic re-strains.The analytical formulations for the buckling and the postbuckling behavior subjected to com-pression,shear as well as combined compression and shear loads are derived by constructing the deflec-tion function and using Galerkin method.Nondimensional parameters are introduced to express the solu-tion in a simple formulation.The initial imperfections and prebuckling deflection are considered to pre-dict the postbuckling behavior more exactly.Comparisons of the finite element method(FEM)are con-ducted to evaluate the effect of the geometric parameters,spring stiffness,etc.Considering the web of stiffener reinforced to the panels,the averaged stiffness method is applied to the buckling and postbuck-ling analysis of composite panels with T-shaped stiffener.Compared with analytical simplified models and FEM results for the stiffened composite panels with T-shaped stiffeners,the good accuracy of the averaged stiffness methods in predicting the buckling and postbuckling behavior is demonstrated.关键词
复合材料加筋板/屈曲/后屈曲/解析解Key words
stiffened composite panel/buckling/postbuckling/analytical solution分类
数理科学引用本文复制引用
刘毅,聂坤,戴瑛..任意铺层复合材料加筋板屈曲/后屈曲行为的解析解[J].南京航空航天大学学报,2018,50(1):1-10,10.基金项目
中央高校基本科研业务费专项资金资助项目. （）
