Prediction of plastic deformation and residual stresses induced in metallic parts by shot peening

Fathallah, Raouf; Inglebert, G.; Castex, L.

doi:10.1179/026708398790290596

Cited by 10 publications

(13 citation statements)

References 3 publications

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Section: State Of the Artmentioning

confidence: 99%

“…Guechichi's model was further improved by Khabou et al [12] and Fathallah et al [13]. The above works [10,12,13] have the advantage taking into account the majority of controlling process parameters have been taken into account. Based on a new model of spherical cavity expansion, Al-Obaid [14] developed a number of theoretical expressions for the process parameters to study the residual stress distribution in the target.…”

Section: State Of the Artmentioning

confidence: 99%

See 1 more Smart Citation

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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Section: State Of the Artmentioning

confidence: 99%

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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“…The key differences between them lie in the kinetic energies and sizes of the balls and shots used in impacting. In shot peening, shots made of steel, ceramics, or glasses normally have sizes ranging from 200 to 500 mm with impact speeds of 20 to 100 m/s [11,12]. In contrast, steel or tungsten carbide balls with diameters of 4 to 10 mm are used in SNH, and their impact speeds typically vary from about 3 to 15 m/s [1-7, 10, 13].…”

Section: Introductionmentioning

confidence: 99%

Enhanced fatigue resistance of a nickel-based hastelloy induced by a surface nanocrystallization and hardening process

Villegas

Shaw

Dai

et al. 2005

Philosophical Magazine Letters

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“…The finiteelement method calculations developed in Reference 18 corroborated the analytical model for various cyclic loadings with different values of R and different residual-stress conditions (shot peening, laser shock peening, and lowplasticity burnishing), identifying an increase in stress relaxation with increasing load amplitude, increasing nearsurface cold working, and a more-negative load ratio. Other authors have concentrated on the theoretical modeling of stress relaxation and plastic deformation [20] or on the uniaxial behavior, [21] without performing systematic experimental investigations.…”

mentioning

confidence: 99%

Stress relaxation of shot-peened UDIMET 720Li under solely elevated-temperature exposure and under isothermal fatigue

Kim

Evans

Shackleton

et al. 2005

Metall Mater Trans A

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The aim of this experimental study was to quantify the changes that occur to the residual-stress state and the near-surface work-hardened zone as a function of depth in a shot-peened UDIMET 720Li Ni superalloy following solely thermal exposure and in combination with strain-controlled fatigue loading at two strain amplitudes. Residual-stress measurements were performed using the sin 2 method on a laboratory X-ray diffractometer as a function of depth by successive electrochemical removal of material. It was found that the as-peened variation in diffraction-peak width (X-ray) with depth correlated well with the recorded hardness profile. A hardness increase in excess of 50 pct was recorded close to the surface. Regarding solely thermal exposure, it was found that the near-surface compressive stresses were relieved to some extent at all temperatures (350 °C to 725 °C) after short-term exposure, being reduced by up to 50 pct at the highest temperatures (650 °C to 725 °C). The isothermally fatigued samples strained at 0.6 pct amplitude displayed similar stress-relaxation behavior to the thermally loaded samples, indicating that at such small strains, stress relaxation is controlled predominantly by thermal relaxation processes. In contrast, stress relaxation following strain-controlled fatigue at 1.2 pct strain is governed by a combination of thermal and mechanical processes. The mechanically induced relaxation component is anisotropic, being significantly greater along the loading axis than transverse to it. Unsurprisingly, with increasing temperature, the thermal contribution to stress relaxation becomes increasingly important and the degree of in-plane anisotropy of stress relaxation lessens.

show abstract

Prediction of plastic deformation and residual stresses induced in metallic parts by shot peening

Cited by 10 publications

References 3 publications

Finite element modelling of shot peening process- A progress overview

Finite element modelling of shot peening process- A progress overview

Enhanced fatigue resistance of a nickel-based hastelloy induced by a surface nanocrystallization and hardening process

Stress relaxation of shot-peened UDIMET 720Li under solely elevated-temperature exposure and under isothermal fatigue

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