Free vibration analysis of delaminated composite beams

被引：133
|
作者：
Lee, J [1 ]
机构：
[1] Sejong Univ, Dept Architectural Engn, Kwangjin Ku, Seoul 143747, South Korea
来源：
COMPUTERS & STRUCTURES | 2000年 / 74卷 / 02期
关键词：
free vibration; delamination; laminated beam; composite; layerwise theory;
D O I：
10.1016/S0045-7949(99)00029-2
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Free vibration analysis of a laminated beam with delaminations is presented using a layerwise theory. Equations of motion are derived from the Hamilton's principle, and a finite element method is developed to formulate the problem. Numerical results are obtained and compared with those of other theories addressing the effects of the lamination angle, location, size and number of delamination on vibration frequencies of delaminated beams. It is found that a layerwise approach is adequate for vibration analysis of delaminated composites. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：121 / 129
页数：9
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