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Type: Journal article
Title: Dynamic response of composite beams with partial shear interaction using a higher-order beam theory
Author: Chakrabarti, A.
Sheikh, A.
Griffith, M.
Oehlers, D.
Citation: Journal of Structural Engineering, 2013; 139(1):47-56
Publisher: ASCE-Amer Soc Civil Engineers
Issue Date: 2013
ISSN: 0733-9445
Statement of
A. Chakrabarti, A. H. Sheikh, M. Griffith and D. J. Oehlers
Abstract: Dynamic response of composite beams with partial interaction is presented using a one-dimensional finite-element model based on a higher-order beam theory. The proposed model takes into account the effect of partial shear interaction between the adjacent layers, as well as the transverse shear deformation of the beam. A third order variation of the axial displacement of the fibers over the beam depth is taken to have a parabolic variation of shear stress, which vanishes at both the top and bottom fibers of the transverse composite surface, as clearly derived on the free and tangentially unloaded surface of the continua. In the proposed finite-element model, there is no need to incorporate any shear correction factor, and the model is free from the shear locking problem. The proposed numerical model is validated by comparing the results with those available in the literature. Many new results are presented, because there are no published results on vibration and buckling of composite beams based on higher-order beam theory. © 2013 American Society of Civil Engineers.
Keywords: Composite beam
Partial shear interaction
Higher-order beam theory
Finite element
Dynamic response
Rights: © 2013 American Society of Civil Engineers
DOI: 10.1061/(ASCE)ST.1943-541X.0000603
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Civil and Environmental Engineering publications

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