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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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Chen, Haofeng
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Creep-fatigue and cyclically enhanced creep mechanisms in aluminium based metal matrix compositescitations
- 2017A novel simulation for the design of a low cycle fatigue experimental testing programmecitations
- 2017Effect of fiber cross section geometry on cyclic plastic behavior of continuous fiber reinforced aluminum matrix compositescitations
- 2016Effect of fiber cross section geometry on cyclic plastic behavior of continuous fiber reinforced aluminum matrix compositescitations
- 2015Verification of the linear matching method for limit and shakedown analysis by comparison with experimentscitations
- 2013Verification of the linear matching method for limit and shakedown analysis by comparison with experiments
- 2013A fully implicit, lower bound, multi-axial solution strategy for direct ratchet boundary evaluationcitations
- 2012A fully implicit multi-axial solution strategy for direct ratchet boundary evaluation
- 2004Fatigue-creep and plastic collapse of notched barscitations
- 2003Linear matching method for creep rupture assessmentcitations
Places of action
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article
Fatigue-creep and plastic collapse of notched bars
Abstract
The paper describes a study of the application of a new assessment method, based on the linear matching method (LMM), to the creep fatigue of notched bars of Udimet 720Li at 650 °C. This high strength nickel based alloy is taken as typical of alloys used in high temperature gas turbine applications. The primary purpose of the study is to see whether it is possible to predict the failure modes for such alloys in terms of standard materials data by the evaluation of a sequence of simplified calculations corresponding to the steady state cyclic stress history. These calculations involve the evaluation of limit load, shakedown limit and ratchet limit for perfect plasticity, rapid cycle creep solutions and the evaluation of an elastic follow-up factor. Within the limitations of the tests, the correlation between predicted failure mode and observed mode is very good and the calculations clearly show up the differences between the two types of notched bars discussed. This implies that LM methods are well suited to the evaluation of failure modes in materials of this type.