3D FE analysis of peening of strain-rate sensitive materials using multiple impingement model

Meguid, S. A.; Shagal, G.; Stranart, J. C.

doi:10.1016/s0734-743x(01)00043-4

Cited by 202 publications

(157 citation statements)

References 10 publications

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“…The model in its present state can account for the loading type, but in order to account for the residual stresses and strain hardening, consideration of the material's cyclic stress-strain characteristics must be made. Once this data is available, we intend to use a more appropriate material model, such as a combined isotropic and kinematic hardening approach, which can capture the material evolutionary behaviour to model firstly the shot peening process (several approaches to this are well documented in the literature, one such physical model which would be appropriate for application in the present work is the multiple impingement model first developed by Meguid [44]) and then the fatigue cycling. This approach would be able to capture both variations in material properties resulting from shot peening and also residual stress development which can be verified against the experimental data reported in the present work before application to complex components.…”

Section: Residual Stress Profiles After Grindingmentioning

confidence: 99%

The effect of shot peening on notched low cycle fatigue

Soady

Mellor

Shackleton

et al. 2011

Materials Science and Engineering: A

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The improvement in low cycle fatigue life created by shot peening ferritic heat resistant steel was investigated in components of varying geometries based on those found in conventional power station steam turbine blades. It was found that the shape of the component did not affect the efficacy of the shot peening process, which was found to be beneficial even under the high stress amplitude three point bend loads applied. Furthermore, by varying the shot peening process parameters and considering fatigue life it has been shown that the three surface effects of shot peening; roughening, strain hardening and the generation of a compressive residual stress field must be included in remnant life models as physically separate entities. The compressive residual stress field during plane bending low cycle fatigue has been experimentally determined using X-ray diffraction at varying life fractions and found to be retained in a direction parallel to that of loading and to only relax to 80% of its original magnitude in a direction orthogonal to loading. This result, which contributes to the retention of fatigue life improvement in low cycle fatigue conditions, has been discussed in light of the specific stress distribution applied to the components. The ultimate aim of the research is to apply these results in a life assessment methodology which can be used to justify a reduction in the length of scheduled plant overhauls. This will result in significant cost savings for the generating utility. KeywordsLow cycle fatigue, stress concentration, shot peening, residual stresses, ferritic heat resisting

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Section: Residual Stress Profiles After Grindingmentioning

confidence: 99%

The effect of shot peening on notched low cycle fatigue

Soady

Mellor

Shackleton

et al. 2011

Materials Science and Engineering: A

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“…With the appearances of powerful finite element software such as ABAQUS, ANSYS and NASTRAN, attention was focused on numerical simulation of shot peening process [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. Such a simulation method provides a cheap and easy way to study the dynamic impact of a shot with high velocity, the double non-linearity of the problem due to the contact of two bodies and the elastic-plastic behaviour of the target, etc.…”

Section: State Of the Artmentioning

confidence: 99%

“…To improve the modelling accuracy, dynamic analysis of single and multiple shot impacts have been conducted by many researchers [33][34][35][36][37][38]. Johnson [33] initially developed a dynamic model of a single shot using a pseudo-dynamic approach.…”

Section: State Of the Artmentioning

confidence: 99%

Finite element modelling of shot peening process- A progress overview

Yang

Wan

Zhang

2009

Int. J. Simul. Multidisci. Des. Optim.

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-It is very significant to investigate the shot peening mechanism in ensuring a good resistance to fatigue and stress corrosion. This paper reviews the recent advancements in shot peening process. Emphasis is put on the application of numerical simulation techniques and finite element method in residual stress prediction during shot peening process. Different methods related to shot peening modelling and prediction of plastic deformation and surface integrity are reviewed. Some key issues such as algorithms and simulation procedures are discussed.

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“…Studies carried out by [11][12][13][14][15] indicate that the SP process generates compressive stresses. Research carried out by Benedetti M., Fontanari V. using alloy AA7050-T7451 has shown that the diameter of shot used does not significantly affect the amount of residual stresses.…”

Section: Introductionmentioning

confidence: 99%

“…As in the case of pressure, the impact of the angle of attack of the processing material on the range of stresses is variable. Research carried out by Jianming W., Feihong L. and Meguid S.A. indicates that cyclical stress of 300 MPa results an over 10-fold increase of the fatigue limit in comparison to other conventional process forming techniques that generate compressive stress [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Synergy of the Plastic Treatment HPT and Shot Peening in Aluminium Alloy Al-Mg-Mn-Sc-Zr

Stegliński

Byczkowska

Sawicki

et al. 2016

Archives of Metallurgy and Materials

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An improvement in fatigue strength is one of the main factors enabling the use of high-durability Al-Mg-Mn-Sc-Zr alloys in functional components of mobile robots. As part of this study, a computer simulation was carried out using ANSYS LS-DYNA software that involved the hybridization of high pressure torsion (HPT) and shot peening (SP) forming processes. The numerical analysis was aimed at determining residual stresses and strains that affect the durability and stress characteristics of the analyzed Al alloy. Results of the study indicate that tensile stresses of σ = 300 MPa generated as a result of HPT are transformed into a beneficial stress of σ = 25 MPa resulting from plastic strains caused by SP surface treatment.

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3D FE analysis of peening of strain-rate sensitive materials using multiple impingement model

Cited by 202 publications

References 10 publications

The effect of shot peening on notched low cycle fatigue

The effect of shot peening on notched low cycle fatigue

Finite element modelling of shot peening process- A progress overview

Synergy of the Plastic Treatment HPT and Shot Peening in Aluminium Alloy Al-Mg-Mn-Sc-Zr

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