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Influence of wear algorithm formulation on computational-experimental corroboration

Influence of wear algorithm formulation on computational-experimental corroboration
Influence of wear algorithm formulation on computational-experimental corroboration
Experimental wear testing is well-established as an important part of the TKR design process. Recently, in-silico models have proved their value to corroborate long-term in-vitro results on a much shorter timescale [1]. Both FE-based models & multi-body dynamics can be used to predict contact pressures, sliding distances and cross-shear (CS). The precise mechanisms of wear are not sufficiently understood to permit analytical calculations, and so empirical formulations are used to estimate wear depths & volumes.

Most early simulations were based on a modified Archard/Lancaster formulation; more recently a number of alternative formulations for cross shear have been proposed; it is unclear which is the most robust or accurate for the widest range of activities. The aim of this study was to develop and corroborate a fast in-silico wear model, and use this to compare different wear formulations.
1916
Strickland, Michael A.
6b639de6-cb09-4383-bf06-576eb6aef448
Browne, Martin
6578cc37-7bd6-43b9-ae5c-77ccb7726397
Taylor, Mark
e368bda3-6ca5-4178-80e9-41a689badeeb
Strickland, Michael A.
6b639de6-cb09-4383-bf06-576eb6aef448
Browne, Martin
6578cc37-7bd6-43b9-ae5c-77ccb7726397
Taylor, Mark
e368bda3-6ca5-4178-80e9-41a689badeeb

Strickland, Michael A., Browne, Martin and Taylor, Mark (2008) Influence of wear algorithm formulation on computational-experimental corroboration. 54th Annual Meeting of the Orthopaedic Research Society, San Francisco, USA. 02 - 05 Mar 2008. p. 1916 .

Record type: Conference or Workshop Item (Poster)

Abstract

Experimental wear testing is well-established as an important part of the TKR design process. Recently, in-silico models have proved their value to corroborate long-term in-vitro results on a much shorter timescale [1]. Both FE-based models & multi-body dynamics can be used to predict contact pressures, sliding distances and cross-shear (CS). The precise mechanisms of wear are not sufficiently understood to permit analytical calculations, and so empirical formulations are used to estimate wear depths & volumes.

Most early simulations were based on a modified Archard/Lancaster formulation; more recently a number of alternative formulations for cross shear have been proposed; it is unclear which is the most robust or accurate for the widest range of activities. The aim of this study was to develop and corroborate a fast in-silico wear model, and use this to compare different wear formulations.

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More information

Published date: March 2008
Venue - Dates: 54th Annual Meeting of the Orthopaedic Research Society, San Francisco, USA, 2008-03-02 - 2008-03-05
Organisations: Bioengineering Group

Identifiers

Local EPrints ID: 71724
URI: http://eprints.soton.ac.uk/id/eprint/71724
PURE UUID: f61e2082-0e62-4132-b959-ed291c40df2f
ORCID for Martin Browne: ORCID iD orcid.org/0000-0001-5184-050X

Catalogue record

Date deposited: 22 Dec 2009
Last modified: 14 Mar 2024 02:39

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Contributors

Author: Michael A. Strickland
Author: Martin Browne ORCID iD
Author: Mark Taylor

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