Free vibration analysis of composite beams with two non-overlapping delaminations


Shu, Dongwei and Della, Christian N. (2004) Free vibration analysis of composite beams with two non-overlapping delaminations International Journal of Mechanical Sciences, 46, (4), pp. 509-526. (doi:10.1016/j.ijmecsci.2004.05.008).

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Description/Abstract

An analytical solution to the free vibration of composite beams with two non-overlapping delaminations is presented. The delaminated beam is modeled as seven interconnected Euler–Bernoulli beams using the delaminations as their boundaries. The continuity and the equilibrium conditions are satisfied between adjoining beams. The analysis includes the differential stretching between the delaminated layers and the bending–extension coupling. The results of the present model agree well with the analytical and experimental data reported in the literature. Parametric studies show that the sizes and locations of the delaminations have significant effect on the natural frequencies and mode shapes. These results provide useful information in the study of the free vibration of delaminated composite beams.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.ijmecsci.2004.05.008
ISSNs: 0020-7403 (print)
Keywords: delamination, free vibration, composite beams, natural frequency, mode shape, laminates
Subjects:
Organisations: Fluid Structure Interactions Group
ePrint ID: 50351
Date :
Date Event
March 2003Submitted
April 2004Published
Date Deposited: 19 Feb 2008
Last Modified: 16 Apr 2017 18:12
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/50351

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