Fatigue Strength
High cycle fatigue strength assessment methodology considering punching effects
... cycle fatigue strength of electric motor components and to take into account these effects when designing pieces, an experimental and numerical procedure are curried ...out. Fatigue tests have been ...
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Analysis of the multiaxial fatigue strength at the mesoscopic scale using 3D microstructure modeling and extreme value statistics
... Abstract Fatigue life computing methods are generally based on putting into equation the mechanical quantities calculated at the micro or meso scale, the relevance of these selected quantities being validated by ...
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Influence of the microstructure and defects on the high cycle fatigue strength of 316L stainless steel under multiaxial loading
... cycle fatigue strength of 316L stainless steel under multiaxial loading Raphaël Guerchais 1,2,a , Franck Morel 1 , Nicolas Saintier 2 and Camille Robert 1 1 Arts et Métiers ParisTech, LAMPA, 49035 Angers ...
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Experimental study of the impact of punching operations on the high cycle fatigue strength of Fe-Si thin sheets
... edge specimens, a significant decrease of the fatigue strength is observed for punched specimens. Different factors are responsible for the degradation of the fatigue resistance. First, geometrical ...
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Beneficial effect of prestrain due to cold extrusion on the multiaxial fatigue strength of a 27MnCr5 steel
... Handle ID: . http://hdl.handle.net/10985/11097 To cite this version : Benjamin GERIN, Etienne PESSARD, Franck MOREL, Catherine VERDU, Alain MARY - Beneficial effect of prestrain due to cold extrusion on the multiaxial ...
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Simulation of multiaxial fatigue strength of steel component treated by surface induction hardening and comparison with experimental results
... in fatigue strength due to SIH treatment is cause by both the residual stresses and the high mechanical characteristics of the heat-treated layer ...tigue strength of the martensite layer is ...
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Microstructure-dependent predictions of the effect of defect size and shape on the high-cycle fatigue strength
... the fatigue limit in terms of a n , - m and N which allow to weight the effect of a notch on the fatigue ...average fatigue limit level, in different loading conditions, are required to ...
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Microstructure-dependent predictions of the effect of defect size and shape on the high-cycle fatigue strength
... the fatigue limit in terms of a n , - m and N which allow to weight the effect of a notch on the fatigue ...average fatigue limit level, in different loading conditions, are required to ...
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Influences of up-milling and down-milling on surface integrity and fatigue strength of X160CrMoV12 steel
... and fatigue strength of X160CrMoV12 high-alloy ...bending fatigue tests revealed that the fatigue limit at 2 × 10 6 cycles of the up-milled state is largely higher of about 26% in comparison ...
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Influence of the hole surface integrity on the fatigue strength of an aluminium drilled part
... 2 face of the part where the tool exits, because of the high axial forces involved [7]. So, the parts require a deburring operation after the drilling. Orbital drilling involves the use of a rotating end mill travelling ...
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A non-local approach to model the combined effects of forging defects and shot-peening on the fatigue strength of a pearlitic steel
... where ρ is the notch curvature radius and (n, γ) are material parameters. Extending this model, Suraratchai et al. [ 26 ] suggested estimating the stress concentration with 2D simulations of the roughness profiles. Using ...
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A non-local approach to model the combined effects of forging defects and shot-peening on the fatigue strength of a pearlitic steel
... Table 2: E ffective contribution of the residual stresses to the fatigue strength, for each batch. contributions for all batches. However, the 50 MPa di fference between the two shot-peened batches seen in ...
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Evaluation of residual stress relaxation and its effect on fatigue strength of AISI 316L stainless steel ground surfaces: Experimental and numerical approaches
... concentration (K t-3p = 1.54). The incorporation of stabilized residual stress values into the Dang Van’s cri- terion has permitted to predict with an acceptable accuracy the fatigue limits under both bending ...
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Analysis of the mesoscopic high cycle multiaxial fatigue strength of fcc metals with crystal plasticity and generalized extreme values probability
... cycle fatigue modeling of materials is an issue that concerns many industrial domains (automotive, aerospace, nuclear, etc) and in wich many progress still remains to be ...the fatigue strength at 10 ...
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Analysis of the mesoscopic high cycle fatigue strength of FCC metals with polycrystalline plasticity and extreme value probability methods
... experimental fatigue strength at 10 7 cycles of pure copper determined by Lukas et ...the fatigue strength at 10 7 cycles, the Crossland criterion [10] was ...The fatigue limits used in ...
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Characterization and simulation of the effect of punching on the high cycle fatigue strength of thin electric steel sheets
... cycle fatigue behaviour of thin Fe-Si steel sheets has been ...investigated. Fatigue tests results on punched and polished edges specimens show a significant drop in the median fatigue ...
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Influence of the microstructure and voids on the high-cycle fatigue strength of 316L stainless steel under multiaxial loading
... macroscopic fatigue limit has also been estimated by the probabilistic fatigue criterion and has been studied for different defect diameters and loading ...the fatigue crack initia- tion threshold in ...
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Effect of Corrosion on the High Cycle Fatigue Strength of Martensitic Stainless Steel X12CrNiMoV12-3
... Corrosion fatigue failure has been mainly investigated on austenitic or ferritic stainless steels in the LCF regime ...cycle fatigue (VHCF) regime (10 9 cycles and ...corrosion fatigue crack ...
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High Cycle Fatigue Strength of Punched Thin Fe-Si Steel Sheets
... against fatigue failure requires the understanding of the influence of punching oper- ations on the fatigue behavior of Fe-Si thin ...potential fatigue crack initiation sites, are partly responsible ...
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High cycle fatigue strength of permanent mold and rheocast aluminum 357 alloy
... the fatigue crack and the ...yield strength, even though crack in the specimen initiated rapidly, 50% of the specimen life elapsed before both sides of the crack propagated in stage ...yield ...
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