Dynamic behaviour of laterally loaded pultruted composite beams

Epaarachchi, Jayantha A. and Birt, Peter (2009) Dynamic behaviour of laterally loaded pultruted composite beams. In: 9th International Conference of the Mechanical and Physical Behaviour of Materials Under Dynamic Loading (DYMAT 2009), 7-11 Sept 2009, Brussels, Belgium.

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Abstract

[Abstract]: This paper discusses a detailed study carried out on vibration characteristics of transversely loaded pultruted composite beams. A considerable discrepancy was noticed in the measured vibration of the transversely loaded beam and the calculated natural frequencies of the beam using Euler-Bernoulli beam theory. It has been observed that the natural frequencies of the beam were increased after lateral loading. A simplified mathematical model was derived for the equation of motion in order to determine the vibration characteristics of the loaded beam. The discontinuities introduced at the loading points were modelled as a combination of translational and torsional springs. The predictions of the model have demonstrated that it has sufficiently captured the dynamic behaviour of a laterally loaded beam. A comparison of model prediction and the experimental results is presented


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited in accordance with the copyright policy of the publisher.
Depositing User: Dr Jayantha Epaarachchi
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 23 Jul 2010 05:57
Last Modified: 11 Sep 2014 06:13
Uncontrolled Keywords: vibration; pultruted beams; structural health monitoring
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0913 Mechanical Engineering > 091304 Dynamics, Vibration and Vibration Control
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/6340

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