Probabilistic methodology for predicting the dispersionof residual stresses and Almen intensity considering shot peening process uncertainties

Atig, A.; Sghaier, R. Ben; Seddik, Raoudha; Fathallah, Raouf

doi:10.1007/s00170-017-1033-3

Cited by 12 publications

(2 citation statements)

References 34 publications

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“…For its characterization, sine 28 or cosine curves 29,30 are mainly used to describe the surface RS and the depth of the RS layer, among other aspects, in combination with the distribution law of SP-induced RS measured experimentally. Considering the variability of the SP parameters, a probabilistic approach to evaluating the induced RS distribution 31 can predict the SP-induced RS profile with a specific probability of occurrence. The ratio between the thickness of the compressive RS layer and the depth of the maximum RS after SP is generally between 3.6 and 4.3.…”

Section: Introductionmentioning

confidence: 99%

Effects of shot-peening parameters, path, and sequence on residual stress of TC17 alloy

Zhang

Yao

Tan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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Aeroengine parts are manufactured mostly from high-strength titanium alloys to meet aeroengine requirements, and shot peening is used to improve the fatigue life of such parts. Shot peening introduces compressive residual stress within the impact layer, and different shot-peening conditions produce different residual-stress fields. In this paper, the residual stress induced by shot peening is investigated. Different shot-peening parameters (air pressure, flow rate, nozzle speed, distance), paths, and sequences are planned for block and thin-plate specimens, and their effects on the consequent residual stress are investigated. The air pressure, flow rate, and nozzle speed have large effects on the residual stress, as do the shot-peening sequence and path, thereby providing technical support for the subsequent work of optimizing the residual stress after shot peening.

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Section: Introductionmentioning

confidence: 99%

Effects of shot-peening parameters, path, and sequence on residual stress of TC17 alloy

Zhang

Yao

Tan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Atig et.al. [12] proposed a probabilistic methodology to evaluate the variability of the induced residual stress and Almen intensity of the shot peening parameters. Based beam bending principles, Divid et al [13] quantify the relationship between the several parameters affecting measured Almen intensity.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of High Peening Coverage on Almen Intensity and Residual Compressive Stress

Yang

Lee

et al. 2019

Applied Sciences

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The effectiveness of shot peening is mainly determined by the peening coverage. The peening coverage is required to be 100% for current technical standards of shot peening. With the increase of material strength, higher peening coverage is required in shot peening process. However, the influence of high peening coverage on Almen intensity and residual compressive stress is unclear, the difficulty mainly lies in the lack of quantitative description of peening coverage in finite element analysis. To analyze the influence of high peening coverage on Almen intensity and residual compressive stress, firstly an approximate quantitative description of peening coverage based on dent size, the distance of shots and shot numbers is proposed in this study. Based on this quantitative description of peening coverage, the arc height and residual stress of the Almen test are simulated with the finite element method. The simulation results of arc height and saturation curve agree well with that of the Almen test, by which the effectiveness of the quantitative description and FE simulation are proved. The further study indicates that in shot peening processes, the excessive peening coverage doesn't improve Almen intensity and residual compressive stress.

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Probabilistic Fatigue Life Prediction of Parabolic Leaf Spring Based on Latin Hypercube Simulation Method

Atig

Sghaier

Fathallah

2019

Advances in Mechanical Engineering and Mechanics

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Probabilistic methodology for predicting the dispersionof residual stresses and Almen intensity considering shot peening process uncertainties

Cited by 12 publications

References 34 publications

Effects of shot-peening parameters, path, and sequence on residual stress of TC17 alloy

Effects of shot-peening parameters, path, and sequence on residual stress of TC17 alloy

Analysis of the Influence of High Peening Coverage on Almen Intensity and Residual Compressive Stress

Probabilistic Fatigue Life Prediction of Parabolic Leaf Spring Based on Latin Hypercube Simulation Method

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