CUED Publications database

Contact between an axisymmetric indenter and a viscoelastic half-space

Greenwood, JA (2010) Contact between an axisymmetric indenter and a viscoelastic half-space. International Journal of Mechanical Sciences, 52. pp. 829-835. ISSN 0020-7403

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Lee & Radok introduced a simple method of solving viscoelastic contact problems by replacing the elastic modulus by the viscoelastic creep function, (Lee EH, Radok JRM. Journal of Applied Mechanics 1960;27:43844) but explained why it fails when the contact area decreases. Ting's discovery (Ting TCT. Journal of Applied Mechanics 1966;35:84554) of the essential mechanism governing unloading of a contact between a sphere and a viscoelastic half-space is used here to develop a relatively simple method of analysis by superposition of an assembly of viscoelastic "Boussinesq" punch indentations. The new method leads to a more convenient form for the variation of the approach during unloading, and this is evaluated for a three-element solid. The same method, with only minor modifications, is then used to evaluate indentation by a conical indenter. © 2010 Elsevier Ltd. All rights reserved.

Item Type: Article
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 18 Jun 2020 03:42
Last Modified: 15 Apr 2021 04:49
DOI: 10.1016/j.ijmecsci.2010.01.010