Fatigue crack shielding in plain bearings under large scale yielding


Burke-Veliz, A., Syngellakis, S. and Reed, P.A.S. (2010) Fatigue crack shielding in plain bearings under large scale yielding Engineering Failure Analysis, 17, (3), pp. 648-657. (doi:10.1016/j.engfailanal.2009.03.032).

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Description/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 the direction of crack propagation. The 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 respective crack driving force predictions

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.engfailanal.2009.03.032
ISSNs: 1350-6307 (print)
Keywords: crack growth, surface layers, bearing failure, automotive design
Subjects:
ePrint ID: 73402
Date :
Date Event
18 December 2008Submitted
April 2010Published
Date Deposited: 09 Mar 2010
Last Modified: 18 Apr 2017 20:51
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/73402

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