An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy

X. Song; W. C. Liu; J. P. Belnoue; J. Dong; G. H. Wu; W. J. Ding; S. A.J. Kimber; T. Buslaps; A. J.G. Lunt; A. M. Korsunsky

doi:10.1016/j.ijfatigue.2012.01.019

An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy

X. Song
, W. C. Liu
, J. P. Belnoue
, J. Dong
, G. H. Wu
, W. J. Ding
, S. A.J. Kimber
, T. Buslaps
, A. J.G. Lunt
, A. M. Korsunsky

Department of Mechanical Engineering

University of Oxford
National Engineering Research Center of Light Alloy Net Forming
Shanghai Jiao Tong University
European Synchrotron Radiation Facility

Research output: Contribution to journal › Article › peer-review

61 Citations (SciVal)

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.

Original language	English
Pages (from-to)	284-295
Number of pages	12
Journal	International Journal of Fatigue
Volume	42
DOIs	https://doi.org/10.1016/j.ijfatigue.2012.01.019
Publication status	Published - 1 Sept 2012

Funding

X. Song would like to thank Institute of Physics (IOP) for its Research Student Conference Fund support and China Scholarship Council for its National Award for Outstanding Self-Financed Students Abroad. W.C. Liu would like to acknowledge the financial sponsorship of the Aerospace Science and Technology Innovation Fund of China, Aerospace Science and Technology Corporation (No. 0502), the National Natural Science Foundation of China (No. 50901045) and Shanghai Rising-Star Program (A type, 09QA1403100).

Keywords

Ageing
Eigenstrain
Magnesium alloy
Residual stress
Shot peening

ASJC Scopus subject areas

Modelling and Simulation
General Materials Science
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ijfatigue.2012.01.019

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Song, X., Liu, W. C., Belnoue, J. P., Dong, J., Wu, G. H., Ding, W. J., Kimber, S. A. J., Buslaps, T., Lunt, A. J. G., & Korsunsky, A. M. (2012). An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy. International Journal of Fatigue, 42, 284-295. https://doi.org/10.1016/j.ijfatigue.2012.01.019

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title = "An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy",

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.",

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AU - Song, X.

AU - Liu, W. C.

AU - Belnoue, J. P.

AU - Dong, J.

AU - Wu, G. H.

AU - Ding, W. J.

AU - Kimber, S. A.J.

AU - Buslaps, T.

AU - Lunt, A. J.G.

AU - Korsunsky, A. M.

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AB - 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.

KW - Ageing

KW - Eigenstrain

KW - Magnesium alloy

KW - Residual stress

KW - Shot peening

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JF - International Journal of Fatigue

ER -

An eigenstrain-based finite element model and the evolution of shot peening residual stresses during fatigue of GW103 magnesium alloy

Abstract

Funding

Keywords

ASJC Scopus subject areas

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