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An approximate JKR theory for elliptical contacts

Johnson, KL and Greenwood, JA (2005) An approximate JKR theory for elliptical contacts. Journal of Physics D: Applied Physics, 38. pp. 1042-1046. ISSN 0022-3727

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JKR theory describes how surface energy modifies the Hertz theory of contact between elastic solids, giving rise to a larger contact area for positive loads, and to a finite tensile load 1.5π R Δγ in order to separate the solids. Here the original theory for circular contacts is extended to the general elliptical Hertzian contact. To a good approximation, the contact area remains elliptical, but the eccentricity varies continuously with the load, and at pull-off is substantially less than the Hertzian value. © 2005 IOP Publishing Ltd.

Item Type: Article
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 18 Jun 2020 03:43
Last Modified: 15 Oct 2020 03:56
DOI: 10.1088/0022-3727/38/7/012