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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Michel, Vincent
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Investigation of the mechanical work during ultrasonic fatigue loading using pulsed time-resolved X-ray diffractioncitations
- 2024Post-process lasering improves strength-ductility tradeoff and fatigue limit of additively manufactured stainless steels ; Le lasage post-processus améliore le compromis résistance-ductilité et la limite de fatigue des aciers inoxydables fabriqués de manière additive
- 2022Coupling between elastic strains and phase transition in dense pure zirconia polycrystalscitations
- 2022Crack path and liquid metal embrittlement specificity of austenitic steels in mercury at room temperaturecitations
- 2022Microstructure Evolution and Mechanical Properties of AISI 430 Ferritic Stainless Steel Strengthened Through Laser Carburizationcitations
- 2021Estimation of stress in specimens loaded with ultrasonic fatigue machinescitations
- 2021Estimation of stress in specimens loaded with ultrasonic fatigue machinescitations
- 2021Analysis of As-Built Microstructures and Recrystallization Phenomena on Inconel 625 Alloy Obtained via Laser Powder Bed Fusion (L-PBF)citations
- 2021Huge local elastic strains in bulk nanostructured pure zirconia materialscitations
- 2021Liquid metal embrittlement and deformation induced martensite: The case of 316 L austenitic steel LME by liquid eutectic gallium-indiumcitations
- 2019Validity of crystal plasticity models near grain boundaries: a contribution of elastic strain measurements at the micron scalecitations
- 2019Microsecond time-resolved X-ray diffraction for the investigation of fatigue behavior during ultrasonic fatigue loadingcitations
- 2019Validity of Crystal Plasticity Models Near Grain Boundaries: Contribution of Elastic Strain Measurements at Micron Scalecitations
- 2019Microsecond time-resolved x-ray diffraction for the investigation of fatigue behavior during ultrasonic fatigue loadingcitations
- 2014Microstructure of injected natural fiber-polymer composite
- 2013La(M,Ti)(O,N) 3 (M = Zn, Ga) as visible light-driven photocatalyst for water splitting
- 2012A novel oxynitride photocatalyst system for water splitting : La 2 Zn 1-x Ti 1+x (O,N) 6
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article
Estimation of stress in specimens loaded with ultrasonic fatigue machines
Abstract
Piezo-electric ultrasonic fatigue machines are used to carry out fatigue tests more rapidly than what is possible using other technologies, at a frequency of . The very high cycle fatigue (VHCF) domain can be studied with these machines as cycles are reached within 14 h when specimens are loaded at stress amplitudes below the yield stress or conventional fatigue strength. The estimation of stress in specimens fatigued at high frequency is a current challenge when adopting this technology. This paper discusses the accuracy and reliability of three methods used to estimate stress amplitudes in specimens subjected to VHCF tests at a high loading frequency. Two historically used methods using strain gauges and a laser vibrometer are discussed and compared with a third, recently developed method based on time-resolved in situ X-ray diffraction (XRD). The three methods are applied to estimate the stress amplitude in a pearlitic steel specimen. The experimental artifacts and uncertainties are evaluated quantitatively to compare the benefits and limits of the methods. The experimental results show that the three methods correctly estimate the stress amplitudes applied to fatigued specimens.