Dynamic stability analysis of shearflexible composite beams
 NamIl Kim,
 ChanKi Jeon,
 Jaehong Lee
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Dynamic stability behavior of the shearflexible composite beams subjected to the nonconservative force is intensively investigated based on the finite element model using the Hermitian beam elements. For this, a formal engineering approach of the mechanics of the laminated composite beam is presented based on kinematic assumptions consistent with the Timoshenko beam theory, and the shear stiffness of the thinwalled composite beam is explicitly derived from the energy equivalence. An extended Hamilton’s principle is employed to evaluate the mass, elastic stiffness, geometric stiffness, damping, and load correction stiffness matrices. Evaluation procedures for the critical values of divergence and flutter loads of the nonconservative system with and without damping effects are then briefly introduced. In order to verify the validity and the accuracy of this study, the divergence and flutter loads are presented and compared with the results from other references, and the influence of various parameters on the divergence and flutter behavior of the laminated composite beams is newly addressed: (1) variation of the divergence and flutter loads with or without the effects of shear deformation and rotary inertia with respect to the nonconservativeness parameter and the fiber angle change, (2) influence of the internal and external damping on flutter loads whether to consider the shear deformation or not.
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 Title
 Dynamic stability analysis of shearflexible composite beams
 Journal

Archive of Applied Mechanics
Volume 83, Issue 5 , pp 685707
 Cover Date
 20130501
 DOI
 10.1007/s0041901207127
 Print ISSN
 09391533
 Online ISSN
 14320681
 Publisher
 SpringerVerlag
 Additional Links
 Topics
 Keywords

 Dynamic stability
 Shear deformation
 Composite beam
 Divergence
 Flutter
 Industry Sectors
 Authors

 NamIl Kim ^{(1)}
 ChanKi Jeon ^{(2)}
 Jaehong Lee ^{(1)}
 Author Affiliations

 1. Department of Architectural Engineering, Sejong University, 98 Kunja Dong, Kwangjin Ku, Seoul, 143747, South Korea
 2. Department of Urban Construction Engineering, University of Incheon, 121 Songdodong, Yeonsugu, Incheon, 406772, South Korea