| People | Locations | Statistics |
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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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Petrogalli, Candida
University of Brescia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2022Tribological behavior of two high performance railway wheel steels paired with a brake block cast ironcitations
- 2022Experimental and numerical investigation on the wear behavior of high performance railway wheel steels paired with various brake block materials under dry sliding conditionscitations
- 2022Anisotropic Behaviour of Extruded Short Carbon Fibre Reinforced PEEK Under Static and Fatigue Loadingcitations
- 2022Microstructural, Mechanical, and Tribological Evolution under Different Heat Treatment Conditions of Inconel 625 Alloy Fabricated by Selective Laser Melting.citations
- 2022Microstructural, Mechanical, and Tribological Characterization of Selective Laser Melted CoCrMo Alloy under Different Heat Treatment Conditions and Hot Isostatic Pressing.citations
- 2021Microstructural, Mechanical, and Tribological Characterization of Selective Laser Melted CoCrMo Alloy under Different Heat Treatment Conditions and Hot Isostatic Pressingcitations
- 2021Application of the Failure Assessment Diagram approach for contact fatigue damage evaluation in railway wheel steelscitations
- 2020Considerazioni sulla microstruttura di ruote monoblocco con tracce di bainite (Considerations about microstructure of solid wheels with traces of bainite)
- 2019Study of the damage induced by thermomechanical load in ER7 tread braked railway wheelscitations
- 2019A study of wear and rolling contact fatigue on a wheel steel in alternated dry-wet contact aided by innovative measurement systemscitations
- 2019Evaluation on the fatigue behavior of sand-blasted AlSi10Mg obtained by DMLScitations
- 2019On Mechanical Properties of New Railway Wheel Steels for Desert Environments and Sand Caused Wheel Damage Mechanismscitations
- 2019Investigation on fatigue strength of sand-blasted DMLS-AlSi10Mg alloycitations
- 2019Effect of shoe braking on wear and fatigue damage of various railway wheel steels for high speed applicationscitations
- 2019Effects of full-stops on shoe-braked railway wheel wear damagecitations
- 2018Influence of micro-notches on the fatigue strength and crack propagation of unfilled and short carbon fiber reinforced PEEKcitations
- 2018Effect of desert sand on wear and rolling contact fatigue behaviour of various railway wheel steelscitations
- 2017An innovative steel grade family for forged-rolled solid wheels designed for environments with presence of sand, debris or gravel on the rails
- 2017Rolling Contact Fatigue and Wear Behavior of High-Performance Railway Wheel Steels Under Various Rolling-Sliding Contact Conditionscitations
- 2015Experimental and Numerical Investigation on Shear Propagation of Subsurface Cracks under Rolling Contact Fatiguecitations
- 2015Using vibration measurements to detect high wear rates in rolling contact fatigue tests
- 2015A comparative study of two high performance railway wheel steels
- 2015An integrated model for competitive damage mechanisms assessment in railway wheel steelscitations
- 2015An experimental procedure for surface damage assessment in railway wheel and rail steelscitations
- 2014Tribological and corrosion behavior of CrN coatings: Roles of substrate and deposition defectscitations
- 2013Fatigue behavior and cyclic damage of peek short fiber reinforced compositescitations
- 2011Application of a failure assessment diagram under rolling contact to components with hardness variable along the depthcitations
- 2010A failure assessment diagram for components subjected to rolling contact loadingcitations
- 2009Competition between wear and rolling contact fatigue at the wheel-rail interface: some experimental evidence on rail steelcitations
Places of action
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article
Influence of micro-notches on the fatigue strength and crack propagation of unfilled and short carbon fiber reinforced PEEK
Abstract
hort carbon fiber reinforced (SCFR) PEEK is a highly attractive material for lightweight structures; improving knowledge about the influence of local imperfections on its fatigue behavior is essential for the design of real components. To this aim, fatigue strength and crack propagation of two grades of SCFR PEEK and neat matrix were investigated by testing at different stress levels specimens with a micro-notch consisting of a small blind hole (range diameter 0.1–1 mm). Overall, the presence of a micro-notch resulted in a decrease of fatigue strength compared to un-notched condition, but with different sensitivity and crack propagation patterns; while a higher fiber volume fraction enhanced fatigue strength and resistance to crack propagation, the combination of a lower fiber content and inclusion of additive particles had a negative effect. Crack propagation in the notched region was also evaluated. The average values of Paris' law exponential coefficients were similar and within the range of literature values, without apparent correlation with reinforcement type. Preliminary investigations in the presence of the smallest micro-notches seem to indicate the presence of a threshold size below which the influence of a small notch is comparable with that of material inherent defects, but further testing is necessary.