层合开口壳脱层损伤分析的半解析法  

SEMI-ANALYTICAL SOLUTION FOR DELAMINATION ANALYSIS OF LAMINATED CYLINDRICAL OPEN SHELLS

作　　者：卿光辉[1] 张焕铜[1] 

机构地区：[1]中国民航大学航空工程学院,天津300300

出　　处：《机械强度》2011年第1期93-98,共6页Journal of Mechanical Strength

基　　金：天津市自然科学基金资助项目(07JCYBJC02100)~~

摘　　要：首先应用柱坐标系下弹性材料修正后的混合H-R(Hellinger-Reissner)变分原理,推导开口圆柱壳的状态向量方程和相应的有限元列式。然后充分利用柱坐标系下状态向量方程半解析法的优越性,建立含脱层损伤层合开口壳的数学模型,为层合开口壳脱层问题的分析提供一种可选的方法。数值实例的分析结果表明方法是成功的。Firstly,state vector equation for cylindrical open shells and corresponding formulation of finite element are established by employing the modified mixed Hellinger-Reissner variational principle for elastic material in the cylindrical coordinate system.And then,the model of laminated cylindrical open shells with delmination is presented by making use of the advantages of semi-analytic solution of the state vector equation in the cylindrical coordinate system.An alternative approach for analysis of the problems of laminated cylindrical open shells with a delamination is supposed.The results of numerical examples show that the method presented is successful.

关 键 词：层合开口圆柱壳 状态向量方程 脱层损伤 有限元 半解析法 

分 类 号：TM282[一般工业技术—材料科学与工程] O346.5[电气工程—电工理论与新技术]