Non-local high cycle fatigue strength criterion for metallic materials with corrosion defects
TypeArticles dans des revues avec comité de lecture
This paper proposes a volumetric high cycle fatigue (HCF) strength criterion able to quantify the influence of natural corrosion pits on the fatigue limit of a martensitic stainless steel with high mechanical strength. Elastic–plastic numerical simulations were performed for real pits geometry, identified by X-ray microtomography, to determine the local stress distribution. The analysis revealed that calculation of the fatigue strength for material with real (irregular) pit geometry required a non-local HCF strength criterion. Such model was proposed based on the Crossland equivalent stress averaged within a volume limited by a critical distance. This criterion was validated with HCF tests on specimens with natural corrosion defects of different sizes.
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Modelling of corrosion fatigue crack initiation on martensitic stainless steel in high cycle fatigue regime EL MAY, Mohamed; SAINTIER, Nicolas; PALIN-LUC, Thierry; DEVOS, Olivier; BRUCELLE, Olivier (Elsevier, 2018)This paper presents an analytical model for assessing the corrosion fatigue crack initiation life on a martensitic stainless steel X12CrNiMoV12-3 in high cycle fatigue regime (between 105 and 107 cycles). Based on in-situ ...
Effect of Corrosion on the High Cycle Fatigue Strength of Martensitic Stainless Steel X12CrNiMoV12-3 EL MAY, Mohamed; PALIN-LUC, Thierry; SAINTIER, Nicolas; DEVOS, Olivier (Elsevier, 2012)This paper addresses the effects of corrosion on the high cycle fatigue (HCF) strength of a high mechanical strength martensitic stainless steel (X12CrNiMoV12-3) that is used in aeronautic applications. HCF tests (between ...
In situ synchrotron ultrasonic fatigue testing device for 3D characterisation of internal crack initiation and growth MESSAGER, Alexandre; JUNET, Arnaud; PALIN-LUC, Thierry; BUFFIÉRE, Jean Yves; SAINTIER, Nicolas; RANC, Nicolas; EL MAY, Mohamed; GAILLARD, Yves; KING, Andrew; BONNIN, Anne; NADOT, Yves (2020)This work presents a new ultrasonic fatigue testing device for studying the initiation and propagation mechanisms of internal microstructurally short fatigue cracks using in situ synchrotron tomography. Its principle is ...
BIDOUARD, Hadrien; PALIN-LUC, Thierry; SAINTIER, Nicolas; DUMAS, Christian; EL DSOKI, Chalid; KAUFMANN, Heinz; SONSINO, Cetin Morris (Carl Hanser Verlag, 2009)Fatigue tests were performed on ferritic bainitic steel notched specimens (Kt = 2.5) under load controlled constant amplitude loading. These tests show that under constant amplitude tension compression loading, periodical ...
Overload effects on a ferritic-baintic steel and a cast aluminium alloy: two very different behaviours SAINTIER, Nicolas; PALIN-LUC, Thierry; EL DSOKI, Chalid; BIDOUARD, Hadrien; KAUFMANN, Heinz; DUMAS, C.; VÖLLMECKE, F.J.; SONSINO, Cetin Morris (Wiley, 2011)Load controlled fatigue tests were performed up to 107 cycles on flat notched specimens (Kt =2.5) under constant amplitude and variable amplitude loadings with and without periodical overloads. Two materials are studied: ...