| 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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Rantala, Juhani
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Crystal plasticity model for creep and relaxation deformation of OFP coppercitations
- 2023Crystal plasticity model for creep and relaxation deformation of OFP coppercitations
- 2021Creep properties of 9Cr and 14Cr ODS tubes tested by inner gas pressurecitations
- 2018Experimentally verified model based predictions for integrity of copper overpack:Annual report 2017
- 2018Experimentally verified model based predictions for integrity of copper overpack
- 2017Microstructural and mechanical characterization of ODS alloy produced by surface oxidation method
- 2016Multiaxial creep testing device for nuclear fuel claddings
- 2016Relaxation behaviour of copper in disposal canisters
- 2016Impression creep testing for the HAZ of a P22 weld
- 2016Creep performance of fuel cladding
- 2016Creep analyses of a steam pipe system
- 2015Material integrity of welded copper overpack:Annual report 2014
- 2015Material integrity of welded copper overpack
- 2013Creep damage and long term life modelling of an X20 steam line componentcitations
- 2013Practical application of impression creep data to power plant
- 2013Performance of copper overpack for repository canisters
- 2010Creep damage and long term life of steam line components
- 2010Mechanical performance and life prediction for canister copper
- 2010Creep damage and long term life of steam line components:Case X20
- 2009Modeling and verification of creep strain and exhaustion in a welded steam mixercitations
- 2008Modelling and verification of creep strain and exhaustion in a welded steam mixer
- 2008Creep damage, ductility and expected life for materials with defects
- 2007The LICON approach to life management
- 2001Modelling the development of creep damage:The licon experience
- 2001Modelling the development of creep damage
Places of action
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article
Modeling and verification of creep strain and exhaustion in a welded steam mixer
Abstract
Structures operating in the creep regime will consume their creep life at a greater rate in locations where the stress state is aggravated by triaxiality constraints. Many structures, such as the welded steam mixer studied here, also have multiple material zones differing in microstructure and material properties. The three-dimensional structure as such, in addition to interacting material zones, is a great challenge for finite element analysis (FEA), even to accurately pinpoint the critical locations where damage will be found. The studied steam mixer, made of 10CrMo 9-10 steel (P22), has after 100,000 h of service developed severe creep damage in several saddle point positions adjacent to nozzle welds. FE-simulation of long term behavior of this structure has been performed taking developing triaxiality constraints, material zones, and primary to tertiary creep regimes into account. The creep strain rate formulation is based on the logistic creep strain prediction model implemented to ABAQUS , including primary, secondary, and tertiary creep. The results are presented using a filtering technique utilizing the formulation of rigid plastic deformation for describing and quantifying the developing “creep exhaustion.”