Approach by Simulation of Residual Stress Generated by Shot-Peening and Their Stability during Fatigue Cycling

H. Michaud; Jean Michel Sprauel; Chedly Braham

doi:10.4028/www.scientific.net/MSF.681.303

Paper Titles

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Forging and Shot-Peening Contribution on Residual Stresses for a Textured Biphasic Titanium Alloy
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Experimental and Numerical Analysis of the Distribution of Residual Stresses Induced by Laser Shock Peening in a 2050-T8 Aluminium Alloy
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Approach by Simulation of Residual Stress Generated by Shot-Peening and Their Stability during Fatigue Cycling
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A Multi-Scale Study of Residual Stresses Created during the Cure Process of a Composite Tooling Material
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Simulation and Evaluation of Residual Stress in Bone at the Interface with Implant
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Local Residual Stress Distributions Induced by Repeated Austenite-Martensite Transformation via Laser Surface Hardening of Steel AISI 4140
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Analysis of Residual Stress Induced by Hand Grinding Process
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HomeMaterials Science ForumMaterials Science Forum Vol. 681Approach by Simulation of Residual Stress...

Approach by Simulation of Residual Stress Generated by Shot-Peening and Their Stability during Fatigue Cycling

Abstract:

ASCOMETAL produces alloy steels used for spring (leaf or coil), where the weak fatigue points are on the surface which is reinforced by shot-peening. So, the fatigue optimization with the steel grade needs a perfect knowledge of the material answer after shot-peening. For that reason, an analytical model has been developed where low cycle fatigue behaviour and all the usual process parameters are integrated (especially the impact position, and the covering-rate). Moreover, through a Monte-Carlos approach, the model permits to analyse the effect of scattering elements like impact speeds, ball sizes, or material fatigue behaviour. With this model several key process parameters have been analysed and validated with residual stress profiles evaluated by X-ray diffraction. So, for spring leaf, the effect of an applied load during shot-peening or shakedown during bending fatigue is described.

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Periodical:

Materials Science Forum (Volume 681)

Pages:

303-308

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.681.303

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Online since:

March 2011

Authors:

H. Michaud, Jean Michel Sprauel, Chedly Braham

Keywords:

Fatigue, Residual Stress, Shot Peening, Simulation, Spring

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