Article (Scientific journals)
Efficient temperature dependence of parameters for thermo-mechanical finite element modeling of Alloy 230
Morch, Hélène; Duchene, Laurent; Harzallah, Ridha et al.
2021In European Journal of Mechanics. A, Solids, 85
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Keywords :
Chaboche model; Thermo-mechanical fatigue; Constitutive model; Temperature Dependency; Cyclic viscoplasticity; Alloy 230
Abstract :
[en] Nickel-based alloys are often selected for manufacturing components operating in extreme conditions such as high-temperature thermo-mechanical cyclic loadings because of their good corrosion and high temperature resistance. This is, for instance, the case for solar receivers where the material undergoes daily cycles going from ambient temperature to approximately 700°C. To predict the material behavior under this type of complex loadings, advanced numerical models – such as Chaboche-type models – are required. In addition to the model, a complete representation of the temperature dependency of the material is essential for both numerical stability and physical accuracy of the model, which is obtained with parameters assuring a certain continuity over the studied range of temperature. To this end, a new formulation for the temperature dependency of material parameters in Chaboche-type models is proposed for the Alloy 230 under both anisothermal and isothermal cyclic loadings.
Disciplines :
Materials science & engineering
Author, co-author :
Morch, Hélène  ;  Université de Liège - ULiège > Département ArGEnCo > Analyse multi-échelles des matériaux et struct. du gén. civ.
Duchene, Laurent  ;  Université de Liège - ULiège > Département ArGEnCo > Analyse multi-échelles des matériaux et struct. du gén. civ.
Harzallah, Ridha
Tuninetti, Victor;  Universidad de La Frontera > Department of Mechanical Engineering
Habraken, Anne  ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
Efficient temperature dependence of parameters for thermo-mechanical finite element modeling of Alloy 230
Publication date :
January 2021
Journal title :
European Journal of Mechanics. A, Solids
ISSN :
0997-7538
Publisher :
Elsevier, Netherlands
Volume :
85
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
SOLAR PERFORM
Funders :
Région wallonne [BE]
Available on ORBi :
since 25 January 2021

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