Vibration analysis of thin-walled composite beams with I-shaped cross-sections

Thuc Vo, Jaehong Lee, Kihak Lee, Namshik Ahn

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)
8 Downloads (Pure)


A general analytical model applicable to the vibration analysis of thin-walled composite I-beams with arbitrary lay-ups is developed. Based on the classical lamination theory, this model has been applied to the investigation of load–frequency interaction curves of thin-walled composite beams under various loads. The governing differential equations are derived from the Hamilton’s principle. A finite element model with seven degrees of freedoms per node is developed to solve the problem. Numerical results are obtained for thin-walled composite I-beams under uniformly distributed load, combined axial force and bending loads. The effects of fiber orientation, location of applied load, and types of loads on the natural frequencies and load–frequency interaction curves as well as vibration mode shapes are parametrically studied.
Original languageEnglish
Pages (from-to)812 - 820
JournalComposite Structures
Issue number2
Publication statusPublished - Jan 2011


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