Publication

Micro-mechanical modelling of fretting fatigue crack initiation and wear in Ti-6Al-4V

McCarthy, Oliver J.
; 
McGarry, J. P.
; 
Leen, Sean B.
Thumbnail Image
Files
Thumbnail Image
McCarthy_et_al_Wear_2013_Micromechanical.pdf
Adobe PDF, 1.44 MB
Identifiers
http://hdl.handle.net/10379/5398
 https://doi.org/10.13025/19170
Publication Date
2013-05-02
Keywords
Fretting wear, Crystal plasticity, Ti–6Al–4V, Crack nucleation
Type
Article
Downloads
Show all metadata
Citation
O. J. McCarthy, J. P. McGarry, S. B. Leen (2014) 'Micro-mechanical modelling of fretting fatigue crack initiation and wear in Ti-6Al-4V'. International Journal Of Fatigue, 62 :180-193.
Abstract
A micro-mechanical modelling methodology is presented for predicting fretting fatigue crack nucleation in Ti–6Al–4V. The methodology is based on a combination of (i) a unit cell crystal plasticity model of Ti–6Al–4V, (ii) a frictional contact model of an experimental fretting wear configuration, and (iii) implementation of a microstructure-sensitive fatigue indication parameter for prediction of crack nucleation. A novel micro-mechanical method for wear prediction is presented. A key finding is the important role of cyclic micro-plasticity in ostensibly elastic loading regimes in fretting wear, resulting in significant effects on distributions of salient fretting contact variables such as contact pressure.
Funder
|~|
Publisher
Elsevier ScienceDirect
Publisher DOI
Rights
Attribution-NonCommercial-NoDerivs 3.0 Ireland
cbn
Collections
Mechanical Engineering (Scholarly Articles)