Effects of tangential strains and shielding in large scale yielding in multi-layered architectures for bearings
Effects of tangential strains and shielding in large scale yielding in multi-layered architectures for bearings
Multi-layered bearing systems used in the automotive industry show shielding and antishielding effects that reduce or amplify the crack driving force under large scale yielding conditions. Using finite element analysis, it is shown that shielding in such systems results in path deflection and bifurcation despite the absence of mixed-mode loading. As the crack approaches a stiff layer, the tangential strains measured around a blunted crack tip model show a maximum corresponding to teh direction of crack propagation. The asymmetric distribution of such strains indicates the effect of shielding and the likelihood of the tip to deflect or bifurcate. The suitability of bi-layer and tri-layer bearing architectures is assessed through crack path and respectie crack driving force predictions.
multi-layered system, bearing, crack tip shielding, blunted tip mesh
Burke-Veliz, A.
f5aa48c4-0bdc-4c2d-ab01-a71a1348e526
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
September 2008
Burke-Veliz, A.
f5aa48c4-0bdc-4c2d-ab01-a71a1348e526
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Reed, P.A.S.
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Burke-Veliz, A., Syngellakis, S. and Reed, P.A.S.
(2008)
Effects of tangential strains and shielding in large scale yielding in multi-layered architectures for bearings.
17th European Conference on Fracture, Brno, Czech Republic.
02 - 05 Sep 2008.
8 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Multi-layered bearing systems used in the automotive industry show shielding and antishielding effects that reduce or amplify the crack driving force under large scale yielding conditions. Using finite element analysis, it is shown that shielding in such systems results in path deflection and bifurcation despite the absence of mixed-mode loading. As the crack approaches a stiff layer, the tangential strains measured around a blunted crack tip model show a maximum corresponding to teh direction of crack propagation. The asymmetric distribution of such strains indicates the effect of shielding and the likelihood of the tip to deflect or bifurcate. The suitability of bi-layer and tri-layer bearing architectures is assessed through crack path and respectie crack driving force predictions.
Text
Burk_08.pdf
- Accepted Manuscript
More information
Published date: September 2008
Venue - Dates:
17th European Conference on Fracture, Brno, Czech Republic, 2008-09-02 - 2008-09-05
Keywords:
multi-layered system, bearing, crack tip shielding, blunted tip mesh
Identifiers
Local EPrints ID: 64290
URI: http://eprints.soton.ac.uk/id/eprint/64290
PURE UUID: 37170f13-02a0-41e8-a032-1e30e2a4df33
Catalogue record
Date deposited: 05 Jan 2009
Last modified: 16 Mar 2024 02:44
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Contributors
Author:
A. Burke-Veliz
Author:
S. Syngellakis
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