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Thomas Helfer
Thomas Helfer
Commissariat à l'Energie Atomique et aux éEnergies Alternatives
Adresse e-mail validée de cea.fr
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Introducing the open-source mfront code generator: Application to mechanical behaviours and material knowledge management within the PLEIADES fuel element modelling platform
T Helfer, B Michel, JM Proix, M Salvo, J Sercombe, M Casella
Computers & Mathematics with Applications 70 (5), 994-1023, 2015
1402015
Iterative residual-based vector methods to accelerate fixed point iterations
I Ramière, T Helfer
Computers & Mathematics with Applications 70 (9), 2210-2226, 2015
772015
Experimental characterization and modelling of UO2 behavior at high temperatures and high strain rates
M Salvo, J Sercombe, JC Ménard, J Julien, T Helfer, T Désoyer
Journal of Nuclear Materials 456, 54-67, 2015
312015
Two fuel performance codes of the PLEIADES platform: ALCYONE and GERMINAL
B Michel, I Ramière, I Viallard, C Introini, M Lainet, N Chauvin, V Marelle, ...
Nuclear Power Plant Design and Analysis Codes, 207-233, 2021
302021
The MFrontGenericInterfaceSupport project
T Helfer, J Bleyer, T Frondelius, I Yashchuk, T Nagel, D Naumov
Journal of Open Source Software 5 (48), 1-8, 2020
282020
An efficient and robust staggered algorithm applied to the quasi-static description of brittle fracture by a phase-field approach
Y Lu, T Helfer, B Bary, O Fandeur
Computer methods in applied mechanics and engineering 370, 113218, 2020
262020
Experimental characterization and modeling of UO2 grain boundary cracking at high temperatures and high strain rates
M Salvo, J Sercombe, T Helfer, P Sornay, T Désoyer
Journal of Nuclear Materials 460, 184-199, 2015
262015
Analytical and 3D numerical analysis of the thermoviscoelastic behavior of concrete-like materials including interfaces
B Bary, C Bourcier, T Helfer
Advances in Engineering Software 112, 16-30, 2017
242017
Crystal viscoplastic modeling of UO2 single crystal
L Portelette, J Amodeo, R Madec, J Soulacroix, T Helfer, B Michel
Journal of Nuclear Materials 510, 635-643, 2018
222018
A new numerical methodology for simulation of unstable crack growth in time independent brittle materials
B Michel, T Helfer, I Ramière, C Esnoul
Engineering Fracture Mechanics 188, 126-150, 2018
212018
Simulation of reactivity-initiated accident transients on UO2-M5® fuel rods with ALCYONE V1. 4 fuel performance code
I Guénot-Delahaie, J Sercombe, T Helfer, P Goldbronn, É Fédérici, ...
Nuclear Engineering and Technology 50 (2), 268-279, 2018
202018
Stress concentration during pellet cladding interaction: Comparison of closed-form solutions with 2D (r, θ) finite element simulations
J Sercombe, R Masson, T Helfer
Nuclear Engineering and Design 260, 175-187, 2013
182013
2D simulation of hydride blister cracking during a RIA transient with the fuel code ALCYONE
J Sercombe, T Helfer, E Federici, D Leboulch, T Le Jolu, AH de Ménibus, ...
EPJ N-Nuclear Sciences & Technologies 2, 22, 2016
142016
Modelling the effect of oxide fuel fracturing on the mechanical behaviour of fuel rods
T Helfer, P Garcia, JM Ricaud, D Plancq, C Struzik, F Sidoroff, L Bernard
Pellet-clad Interaction in Water Reactor Fuels: Seminar Proceedings, Aix-en …, 2005
142005
Large-deformation geomechanical problems studied by a shear-transformation-zone model using the material point method
WL Li, N Guo, ZX Yang, T Helfer
Computers and Geotechnics 135, 104153, 2021
122021
Licos, a fuel performance code for innovative fuel elements or experimental devices design
T Helfer, S Bejaoui, B Michel
Nuclear Engineering and Design 294, 117-136, 2015
122015
Numerical analysis of concrete creep on mesoscopic 3D specimens
B Bary, C Bourcier, T Helfer
CONCREEP 10, 1090-1098, 2015
112015
Extension of monodimensional fuel performance codes to finite strain analysis using a Lagrangian logarithmic strain framework
T Helfer
Nuclear Engineering and Design 288, 75-81, 2015
102015
Recent modelling improvements in fuel performance code GERMINAL for SFR oxide fuel pins
M Lainet, V Bouineau, T Helfer, M Pelletier
102013
State of the art of the conceptual designs for ASTRID control and shutdown rods
I Guénot-Delahaie, D Lorenzo, B Valentin, JM Escleine, T Helfer
International conference on Fast Reactors and related fuel cycles, FR13, 2013
92013
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