Numerical modelling of crack shielding and deflection in a multi-layered material system
Numerical modelling of crack shielding and deflection in a multi-layered material system
Finite element analysis has been used to investigate the fatigue behaviour observed in testing a layered structure (representative of an automotive journal bearing). The aim of the analysis was to explain the deflection or bifurcation observed as a fatigue crack propagates through the multi-layered structure of a bearing. A fracture mechanics approach was adopted using detailed evaluations of the J-integral to assess and monitor both crack tip driving force and directional propensity with crack growth. Crack shielding or anti-shielding as well as deflection or bifurcation were conclusively linked to the difference between the fundamental elasto-plastic properties of the various constituent materials.
multi-layer materials, plain bearings, fatigue, crack shielding, crack deflection
11-22
Joyce, M.R.
e294d1ba-c37a-4149-b9c0-15095d643d3b
Reed, P.A.S
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
2003
Joyce, M.R.
e294d1ba-c37a-4149-b9c0-15095d643d3b
Reed, P.A.S
8b79d87f-3288-4167-bcfc-c1de4b93ce17
Syngellakis, S.
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Joyce, M.R., Reed, P.A.S and Syngellakis, S.
(2003)
Numerical modelling of crack shielding and deflection in a multi-layered material system.
Materials Science and Engineering: A, 342 (1-2), .
(doi:10.1016/S0921-5093(02)00279-4).
Abstract
Finite element analysis has been used to investigate the fatigue behaviour observed in testing a layered structure (representative of an automotive journal bearing). The aim of the analysis was to explain the deflection or bifurcation observed as a fatigue crack propagates through the multi-layered structure of a bearing. A fracture mechanics approach was adopted using detailed evaluations of the J-integral to assess and monitor both crack tip driving force and directional propensity with crack growth. Crack shielding or anti-shielding as well as deflection or bifurcation were conclusively linked to the difference between the fundamental elasto-plastic properties of the various constituent materials.
Text
joyc_03.pdf
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More information
Published date: 2003
Keywords:
multi-layer materials, plain bearings, fatigue, crack shielding, crack deflection
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 22102
URI: http://eprints.soton.ac.uk/id/eprint/22102
ISSN: 0921-5093
PURE UUID: 6f55f26e-4658-4a40-acca-c29a62f1eef2
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Date deposited: 14 Mar 2006
Last modified: 16 Mar 2024 02:44
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Author:
M.R. Joyce
Author:
S. Syngellakis
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