High cycle fatigue behavior prediction of shot-peened parts

Fathallah, Raouf; Laamouri, Adnen; Sidhom, Habib; Braham, C.

doi:10.1016/j.ijfatigue.2004.03.007

Cited by 107 publications

(79 citation statements)

References 21 publications

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“…However, this is true as long as the density and size of surface defects induced by shot peening remain not significant. Otherwise the degradation of the fatigue resistance behavior of excessively shot peened components have been clearly observed [17,18,19].…”

Section: Introductionmentioning

confidence: 99%

Effect of shot peening on metastable austenitic stainless steels

Fargas

Roa

Mateo

2015

Materials Science and Engineering: A

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In this work, shot peening was performed in a metastable austenitic stainless steel EN 1.4318 (AISI 301LN) in order to evaluate its effect on austenite to martensite phase transformation and also the influence on the fatigue limit. Two different steel conditions were considered: annealed, i.e., with a fully austenitic microstructure, and cold rolled, consisting of a mixture of austenite and martensite. X-ray diffraction, electron backscattered diffraction and focus ion beam, as well as nanoindentation techniques, were used to elucidate deformation mechanisms activated during shot peening and correlate with fatigue response. Results pointed out that extensive plastic deformation and phase transformation developed in annealed specimens as a consequence of shot peening.However, the increase of roughness and the generation of microcracks led to a limited fatigue limit improvement. In contrast, shot peened cold rolled specimens exhibited enhanced fatigue limit. In the latter case, the main factor that determined the influence on the fatigue response was the distance from the injector, followed successively by the exit speed of the shots and the coverage factor.

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Section: Introductionmentioning

confidence: 99%

Effect of shot peening on metastable austenitic stainless steels

Fargas

Roa

Mateo

2015

Materials Science and Engineering: A

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“…The influence of residual stresses on the high cycle fatigue (HCF) behaviour can be predicted using a multiaxial fatigue criterion such as the Dang Van's criterion [16,[18][19][20][21][22][23][24]. In this case, it is necessary to evaluate the stabilized state of residual stresses under cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of residual stress relaxation and its effect on fatigue strength of AISI 316L stainless steel ground surfaces: Experimental and numerical approaches

Laamouri

Sidhom

Braham

2013

International Journal of Fatigue

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. This paper is aimed at evaluating the residual stress relaxation and its effect on the fatigue strength of AISI 316L steel ground surfaces in comparison to electro-polished surfaces. An experimental evaluation was performed using 3-point and 4-point bending fatigue tests at R r = 0.1 on two sets of notched specimens finished by electro-polishing and grinding. The residual stress fields were measured at the notch root of specimens, before and after fatigue tests, by means of the X-ray diffraction technique. It was found a degradation of about À35% for the 4-point bending fatigue limit at 2 Â 10 6 cycles of the ground specimens in comparison to the electro-polished ones. This degradation is associated with a slight relaxation of the grinding residual stresses which remain significant tensile stresses at the stabilized state. While under the 3-point bending test, these residual stresses relax completely and provoke a noticeable increase of the fatigue limit estimated at about 50% in comparison to the 4-point bending fatigue test. The numerical evaluation of residual stress relaxation was carried out by FE analyses of the cyclic hardening behaviour of the ground layer. The isotropic and nonlinear kinematic model proposed by Chaboche was used and calibrated for the base material and the ground layer. The results show that residual stresses relax to a stabilized state characterized by elastic-shakedown response. This stabilization is occurred after the first cycle of the 4-point bending test corresponding to the higher stress concentration (K t4p = 1.66), while it requires many cycles under the 3-point bending test corresponding to the lower stress concentration (K t-3p = 1.54). The incorporation of stabilized residual stress values into the Dang Van's criterion has permitted to predict with an acceptable accuracy the fatigue limits under both bending modes.

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“…The hydrostatic pressure is an addition of the applied and residual stresses, σ app (z, t) and σ R (z, t) respectively, in the nitrided layer [12,14,15] :…”

Section: The Dang Van Criterionmentioning

confidence: 99%

Optimization of gaseous nitriding of carbon iron-based alloy based on fatigue resistance modelling

Weil

Barrallier

Jegou

et al. 2018

International Journal of Fatigue

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. AbstractGaseous nitriding of steels is a well-established thermochemical surface treatments that increases the fatigue resistance of treated parts. The present work proposes a modelling of the fatigue life as a function of the applied stress. It takes into account the hardness and compressive residual stresses that developed during nitriding. The model is suitable to help optimizing nitriding parameters by reverse modelling.

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High cycle fatigue behavior prediction of shot-peened parts

Cited by 107 publications

References 21 publications

Effect of shot peening on metastable austenitic stainless steels

Effect of shot peening on metastable austenitic stainless steels

Evaluation of residual stress relaxation and its effect on fatigue strength of AISI 316L stainless steel ground surfaces: Experimental and numerical approaches

Optimization of gaseous nitriding of carbon iron-based alloy based on fatigue resistance modelling

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