Very high cycle fatigue
Very high cycle fatigue for single phase ductile materials: Comparison between α-iron, copper and α-brass polycrystals
... In high cycle fatigue tests, a thermal steady-state occurs some- ...per cycle can be consid- ered as a constant induced by a constant population of micro- ...of very high ...
14
Dissipation Assessments During Dynamic Very High Cycle Fatigue Tests
... Dynamic Very High Cycle Fatigue Tests ...during very high cycle fatigue tests (VHCF) at high loading frequency (20 kHz) and low stress ...of fatigue ...
12
Very High Cycle Fatigue for single phase ductile materials: slip band appearance criterion
... the High Cycle Fatigue (HCF), much work, including analyzing and modeling proposed by ...of fatigue damage in the HCF regime in ductile single-phase materials and also in many ...
12
Evaluating Schmid criterion for predicting preferential locations of persistent slip markings obtained after very high cycle fatigue for polycrystalline pure copper
... Handle ID: . http://hdl.handle.net/10985/9824 To cite this version : Ngoc-Lam PHUNG, Véronique FAVIER, Nicolas RANC - Evaluating Schmid criterion for predicting preferential locations of persistent slip markings obtained ...
14
Very high cycle fatigue strength and crack growth of thin steel sheets
... Ultrasonic fatigue; Plate steel fatigue; Fatigue resistance; Fatigue crack ...in high and very high cycle regime has been studied by Bathias et ...piezoelectric ...
8
Very high cycle fatigue of a high strength steel under sea water corrosion: A strong corrosion and mechanical damage coupling
... under very low stress strain amplitudes), to model the effect of corrosion fatigue on both the initiation of pits and the crack growth emanating from ...corrosion fatigue in metals in the very ...
11
Fatigue crack initiation and growth on a steel in the very high cycle regime with sea water corrosion
... two very different frequencies is proposed by Yeske and ...a high rate in ultrasonic fatigue but it appears that transport may be accelerated by convection induced by the high frequency ...at ...
11
Very high cycle fatigue of copper: Evolution, morphology and locations of surface slip markings
... kHz fatigue tests than in the HCF characterized by low fre- quency ...ultrasonic fatigue machines. The PSB threshold stress and the stress fatigue limit, measured in ultra- sonic tests, are ...
11
Ultrafine versus coarse grained Al 5083 alloys: From low-cycle to very-high-cycle fatigue
... at high plastic strain amplitude are also in contradiction with what is usually reported, but these two results are consistent with one another and, paradoxically, with the divergence of the Manson-Coffin curves ...
15
Micromechanical study of the loading path effect in high cycle fatigue
... in high cycle fatigue leads to moderate plastic ...not very sensitive to the constitutive model assigned to the grains, for the loading cases studied, despite remarkable differences between ...
35
Micromechanical modeling for the probabilistic failure prediction of stents in high-cycle fatigue
... the fatigue crack initiation threshold c and by computing the ratio of the number of surviving unit cells divided by the total number of unit ...either very close to 0 or to ...suitable fatigue ...
14
High-Cycle Fatigue Behaviour of Pure Tantalum under Multiaxial and Variable Amplitude Loadings
... accurate fatigue life assessments for materials submitted to variable amplitude loadings is critical to the design of safe ...of fatigue life models for this ...in fatigue behaviour, depending on ...
7
Micro-mechanical modelling of high cycle fatigue behaviour of metals under multiaxial loads
... Comparison with Crossland criterion In terms of cubic elasticity (Figure 12(b)) the cloud of gray points representing the mesoscopic results is very dispersed. In addition, some grains have a critical value of ...
33
High cycle fatigue damage mechanisms in cast aluminium subject to complex loads
... the high cycle fatigue ...the fatigue behaviour of austenitic stainless steel ...are very close to those obtained under imposed stress, uniaxial loading ...
26
A numerical investigation of the high cycle fatigue sensitivity to microstructure and defect
... the fatigue experiments are very time consuming and require massive efforts on the devices’ setting up and specimens’ ...the high cycle fatigue regime, it is well known that the strength ...
17
On the formation of crack networks in high cycle fatigue
... P obs . ` A partir de cette information, un mod`ele d’endommagement est ´ecrit ` a l’´echelle m´esoscopique. Enfin, la coalescence est alors ˆetre d´ecrite ` a l’aide d’une condition de localisation de l’endommagement. ...
9
High cycle multiaxial fatigue crack initiation : experimental observations and microstructure simulations
... of fatigue crack initiation is not a grain average type ...to fatigue can be very large, to the point that the computational tools currently available are not capable of undertaking the calculation ...
7
Polycrystalline microstructure, cubic elasticity and nucleation of high-cycle fatigue cracks
... this high scatter induces higher or smaller stresses in some of the well-oriented grains and therefore faster or slower crack nucleation depending on the orientations of the neighboring ...indeed very ...
48
The effect of mean stress and stress biaxiality in high-cycle fatigue
... are very dif- ferent depending on the criterion used, at least for the example of the 34CrMo4 alloy ...of high mean stress, the criteria require other ingredients or more physically based param- eters, to ...
17
High-Cycle Fatigue Behaviour of Pure Tantalum under Multiaxial and Variable Amplitude Loadings
... accurate fatigue life assessments for materials submitted to variable amplitude loadings is critical to the design of safe ...of fatigue life models for this ...in fatigue behaviour, depending on ...
8