Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21894
Title: Young's modulus interpreted from compression tests with end friction
Authors: Chau, KT 
Issue Date: 1997
Publisher: American Society of Civil Engineers
Source: Journal of engineering mechanics, 1997, v. 123, no. 1, p. 1-7 How to cite?
Journal: Journal of engineering mechanics 
Abstract: This paper derives an approximate expression for the true Young's modulus of a solid circular cylinder under compression between two end blocks with friction, provided that the Poisson's ratio is known. The conventional method of evaluating the Young's modulus assumes that uniform stress and deformation fields exist inside the specimen. However, if friction exists between the loading platens and the end surfaces of the specimen, a correction factor must be applied to the apparent Young's modulus. A correction factor with calculable error is obtained through the use of the Prager-Synge function space concept. The amount of friction is quantified by proposing a measurable parameter to model partial slip conditions. Numerical results show that the correction factor increases with both the slenderness ratio and the Poisson's ratio; these observations agree qualitatively with Filon's classical result. For the cases of partial slip, tables are provided for quick calculation of the correction factor.
URI: http://hdl.handle.net/10397/21894
ISSN: 0733-9399
EISSN: 1943-7889
DOI: 10.1061/(ASCE)0733-9399(1997)123:1(1)
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