Title of article
An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy
Author/Authors
X. Song، نويسنده , , W.C. Liu، نويسنده , , J.P. Belnoue، نويسنده , , J. Dong، نويسنده , , G.H. Wu، نويسنده , , W.J. Ding، نويسنده , , S.A.J. Kimber، نويسنده , , T. Buslaps، نويسنده , , A.J.G. Lunt، نويسنده , , A.M. Korsunsky، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
12
From page
284
To page
295
Abstract
Magnesium alloy GW103 samples were heat treated to different ageing conditions and then shot peened using process parameters that deliver optimized high cycle fatigue (HCF) life. Significant HCF life improvements were observed in all samples, with a peak-aged sample showing the biggest increase. In order to simulate the effect and evolution of residual stresses during low cycle fatigue (LCF), a Finite Element (FE) model was employed, taking into account both the shot-peening-induced plastic strains and the influence of hardening on subsequent deformation. Experimental and modelling results offer a basis for explaining the observed fatigue performance improvement due to shot peening.
Keywords
Ageing , magnesium alloy , Shot peening , Residual stress , Eigenstrain
Journal title
INTERNATIONAL JOURNAL OF FATIGUE
Serial Year
2012
Journal title
INTERNATIONAL JOURNAL OF FATIGUE
Record number
1162528
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