| 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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Leidermark, Daniel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2023Accounting for anisotropic, anisothermal, and inelastic effects in crack initiation lifing of additively manufactured componentscitations
- 2023Numerical prediction of warm pre-stressing effects for a steam turbine steelcitations
- 2022Accounting for crack closure effects in out-of-phase TMF crack growth with extended hold timescitations
- 2022The effect of dwell times and minimum temperature on out-of-phase thermomechanical fatigue crack propagation in a steam turbine steel - Crack closure predictioncitations
- 2021Thermomechanical fatigue life due to scatter in constitutive parameterscitations
- 2021Out-of-phase thermomechanical fatigue crack propagation in a steam turbine steel — modelling of crack closurecitations
- 2020The prediction of crack propagation in coarse grain RR1000 using a unified modelling approachcitations
- 2019Evaluation of the crystallographic fatigue crack growth rate in a single-crystal nickel-base superalloycitations
- 2018Crack initiation prediction of additive manufactured ductile nickelbased superalloyscitations
- 2018Thermomechanical fatigue crack initiation in disc alloys using a damage approachcitations
- 2017The Transition from Micro- to Macrocrack Growth in Compacted Graphite Iron Subjected to Thermo-Mechanical Fatiguecitations
- 2016The effect of superimposed high-cycle fatigue on thermo-mechanical fatigue in cast ironcitations
- 2016Comparative Analysis of Stress Relaxation and Creep in a Single-Crystal Superalloycitations
- 2016A Finite Element Study of the Effect of Crystal Orientation and Misalignment on the Crack Driving Force in a Single-Crystal Superalloycitations
- 2015Thermo-mechanical and superimposed high-cycle fatigue interactions in compacted graphite ironcitations
- 2015Influence of crystal orientation on the thermomechanical fatigue behaviour in a single-crystal superalloycitations
- 2014Creep and Stress Relaxation Anisotropy of a Single-Crystal Superalloycitations
- 2014Modelling of Thermomechanical Fatigue Stress Relaxation in a Single-Crystal Nickel-Base Superalloycitations
- 2014Modelling of TMF Crack Initiation in Smooth Single-Crystal Superalloy Specimenscitations
- 2014Low-Cycle Fatigue Behaviour of a Ni-Based Single-Crystal Superalloycitations
- 2014In- and Out-of Phase Thermomechanical Fatigue of a Ni-Based Single-Crystal Superalloycitations
- 2011Evaluation of Fatigue Crack Initiation in a Notched Single-crystal Superalloy Componentcitations
- 2010Fatigue crack initiation in a notched single-crystal superalloy componentcitations
- 2010Investigation of localized damage in single crystals subjected to thermalmechanical fatigue (TMF)citations
- 2010Modelling of constitutive and fatigue behaviour of a single-crystal nickel-base superalloy
Places of action
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article
Thermomechanical fatigue crack initiation in disc alloys using a damage approach
Abstract
<jats:p>A fatigue crack initiation model based on damage accumulation via a fatigue memory surface in conjunction with a plastic strain energy parameter was evaluated for thermomechanical fatigue loading in a gas turbine disc alloy. The accumulated damage in each hysteresis loop was summed up, and it was assumed that the damage at the stable state is repeated until failure occurs. Crack initiation occurs when enough fatigue damage has been obtained, and the number of cycles can thus be directly determined. The fatigue damage is highly coupled to the constitutive behaviour of the material, where the constitutive behaviour was modelled using a non-linear hardening description. Based on this, a stable state was achieved and the obtained damage could be extracted. A user-defined material subroutine was implemented, incorporating both the constitutive description and the fatigue damage accumulation. The framework was adopted in a finite element context to evaluate the thermomechanical fatigue crack initiation life of the disc alloy RR1000. From the evaluation it could be seen that a good prediction of the thermomechanical fatigue life was achieved compared to performed experiments.</jats:p>