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On determining the elastic modulus of a cylindrical sample subjected to flexural excitation in a resonant column apparatus

Kumar, Jyant and Madhusudhan, BN (2010) On determining the elastic modulus of a cylindrical sample subjected to flexural excitation in a resonant column apparatus. In: Canadian Geotechnical Journal / Revue canadienne de géotechnique, 47 (11). pp. 1288-1298.

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Abstract

For resonant column tests conducted in the flexure mode of excitation, a new methodology has been proposed to find the elastic modulus and associated axial strain of a cylindrical sample. The proposed method is an improvement over the existing one, and it does not require the assumption of either the mode shape or zero bending moment condition at the top of the sample. A stepwise procedure is given to perform the necessary calculations. From a number of resonant column experiments on aluminum bars and dry sand samples, it has been observed that the present method as compared with the one available in literature provides approximately (i) 5.9%-7.3% higher values of the elastic modulus and (ii) 6.5%-7.3% higher values of the associated axial strains.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to NRC Research Press.
Keywords: dynamic properties; elastic modulus; elastic strain; resonant column test; sands
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 23 Dec 2010 10:19
Last Modified: 23 Dec 2010 10:19
URI: http://eprints.iisc.ernet.in/id/eprint/34340

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