Global buckling of composite plates containing rectangular delaminations using exact stiffness analysis and smearing method

被引：16

作者：

Damghani, Mandi ^{[1
]}

Kennedy, David ^{[1
]}

Featherston, Carol ^{[1
]}

机构：

[1] Cardiff Sch Engn, Cardiff CF24 3AA, S Glam, Wales

来源：

COMPUTERS & STRUCTURES | 2014年 / 134卷

关键词：

Aerospace structures; Composites; Buckling; Delamination; Exact strip; Wittrick-Williams algorithm; COMPRESSIVE FATIGUE; VIBRATION; DESIGN; GROWTH;

D O I：

10.1016/j.compstruc.2013.12.005

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The global buckling of a composite plate with a single rectangular delamination is studied using a smearing method and employing exact stiffness analysis and the Wittrick Williams algorithm. Computational efficiency is achieved by avoiding discretisation into elements and non-linear analyses, making the method suitable for parametric studies in preliminary aircraft design. Numerical results for longitudinal compressive loading show the level of reduction in buckling load with increasing length and width of delamination. Global buckling strength is increased as the delamination is moved towards the plate surface, but is relatively insensitive to its widthwise and lengthwise location. The results are validated by finite element analysis. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：32 / 47

页数：16

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