Dynamics of delaminated beams

被引：139

作者：

Luo, H ^{[1
]}

Hanagud, S ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Aerosp Engn, Atlanta, GA 30332 USA

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2000年 / 37卷 / 10期

关键词：

delamination; delamination modeling; nonlinear dynamic response; composite beam; frequency; mode shape; eigensolutions;

D O I：

10.1016/S0020-7683(98)00325-4

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, we present a new model for composite beams with through-width delaminations. Shear effect and rotary inertia terms, as well as bending-extension coupling, are taken into account in the governing equations of vibration. Nonlinear interaction, due piecewise linear spring models between the delaminated sublaminates, is also included. Based on this model, eigensolutions for vibrations of intact and delaminated beams are found analytically. Dynamic behavior predicted by this model is then compared with previously reported experimental results. Better agreements with the experimental results are found. Discrepancies among previously proposed models are explained without difficulty. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1501 / 1519

页数：19

共 15 条

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