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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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Pippan, R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2021How the interface type manipulates the thermomechanical response of nanostructured metals : A case study on nickel
- 2021Stainless steel reveals an anomaly in thermal expansion behavior of severely deformed materialscitations
- 2020Thermal stabilization of metal matrix nanocomposites by nanocarbon reinforcements
- 2020Fatigue crack growth model including load sequence effects – Model development and calibration for railway axle steelscitations
- 2020Magnetic dilution by severe plastic deformationcitations
- 2019Annealing-assisted high-pressure torsion in Zr55Cu30Al10Ni5 metallic glasscitations
- 2019High strength nanocrystalline Cu–Co alloys with high tensile ductilitycitations
- 2019Annealing-assisted high-pressure torsion in $mathrm{Zr_{55}Cu_{30}Al_{10}Ni_{5}}$ metallic glasscitations
- 2019Annealing-assisted high-pressure torsion in Zr<inf>55</inf>Cu<inf>30</inf>Al<inf>10</inf>Ni<inf>5</inf> metallic glasscitations
- 2018Deformation characteristics of ultrafine grained and nanocrystalline iron and pearlitic steel - An in situ synchrotron investigationcitations
- 2018The cyclic R-curve – Determination, problems, limitations and applicationcitations
- 2018Effect of processing temperature on the microstructural characteristics of Cu-Ag nanocomposites: From supersaturation to complete phase decompositioncitations
- 2018An investigation on shear banding and crystallographic texture of Ag–Cu alloys deformed by high-pressure torsioncitations
- 2017Deformation mechanisms during severe plastic deformation of a Cu-Ag compositecitations
- 2017High-throughput study of binary thin film tungsten alloyscitations
- 2017Crack path identification in a nanostructured pearlitic steel using atom probe tomographycitations
- 2017Ductilisation of tungsten (W) through cold rolling
- 2016About the fatigue crack propagation threshold of metals as a design criterion - A reviewcitations
- 2013Percolating porosity in ultrafine grained copper processed by High Pressure Torsioncitations
- 2013Recent progress in research on tungsten materials for nuclear fusion applications in Europecitations
- 2013Recent progress in research on tungsten materials for nuclear fusion applications in Europecitations
- 2012Nanostructured materials
- 2011Recrystallization and Grain Growth in Ultrafine-Grained Materials Produced by High Pressure Torsioncitations
- 2010Metallic composites processed via extreme deformation: Toward the limits of strength in bulk materials
- 2009Positron annihilation studies of HPT deformed aluminium alloys
- 2007Three-dimensional finite element simulation of a polycrystalline copper specimencitations
Places of action
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article
Fatigue crack growth model including load sequence effects – Model development and calibration for railway axle steels
Abstract
Beside well-known influence factors like residual stresses, component and crack geometry also load sequence effects significantly impact the crack propagation rate. In this paper two major load sequence effects, namely overloads and small loads, and their particular influence on the fatigue crack growth are investigated in detail. Both effects lead to a retardation in the crack propagation rate by increasing the plasticity-induced (overload) or the oxide-induced (small loads) crack closure. To develop a holistic fatigue crack growth model including the short crack behaviour as well as load sequence effects, the NASGRO equation is modified accordingly. This improved fatigue crack growth approach is calibrated for two common material grades for railway axles, namely EA4T and EA1N, and implemented into crack growth assessment software tools.