Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloy


Joyce, M.R., Lee, K.K., Syngellakis, S. and Reed, P.A.S. (2004) Quantitative assessment of preferential fatigue initiation sites in a multi-phase aluminium alloy. Fatigue and Fracture of Engineering Materials and Structures, 27, (11), 1025-1036. (doi:doi: 10.1111/j.1460-2695.2004.00815.x).

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Description/Abstract

Complex multi-phase Al–Sn–Si alloys are commonly employed in the manufacture of small automotive plain bearings. The fundamental fatigue initiation behaviour of this class of alloys is currently not well understood. A range of analytical techniques were applied to investigate preferential initiation site location and to attempt to identify critical microstructural features. It was apparent from experimental studies that points of fatigue crack initiation are associated with the Si secondary phase. Using tessellation approaches and subsequently both adaptive numerical modelling and micro-scale finite element modelling allowed the identification of features affecting the probability that a given Si phase would initiate a fatigue crack.

Item Type: Article
Related URLs:
Keywords: adaptive numerical modelling; aluminium alloys; fatigue; finite element analysis
Subjects: T Technology
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 22895
Date Deposited: 21 Mar 2006
Last Modified: 27 Mar 2014 18:12
Contact Email Address: ss@soton.ac.uk
URI: http://eprints.soton.ac.uk/id/eprint/22895

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