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Communication Dans Un Congrès Année : 2010

Mechanical behaviour of prestressed reinforced concrete vessels as an option to replace GFR reference primary circuit

Jean-Yves Malo
  • Fonction : Auteur
David Plancq
  • Fonction : Auteur
Christophe Gallé
  • Fonction : Auteur
Shahrokh Ghavamian
  • Fonction : Auteur

Résumé

The Gas cooled Fast Reactor (GFR) is considered by the French Commissariat à l’Energie Atomique as a promising concept, using Helium as coolant. The study presented in this paper consists in revisiting the reference solution proposed at the end of 2007 by assessing a reinforced prestressed concrete vessel to include every component of the primary circuit. Two configurations are considered (single cavity or multiple cavities) which are submitted to pressure and temperature loadings. A simplified thermo-mechanical study shows the necessity to include prestress if tensile stresses want to be avoided, from which cracks may develop. From the initial configurations, the prestressing system (type, section and tension) is defined. A three dimensional thermo-mechanical simulation is then performed and shows that initial configurations do not manage to avoid tensile stresses. A parametric study is then proposed considering variables like the concrete thickness or the internal concrete temperature to improve the design, propose an optimized solution and underline the need for further studies.
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Dates et versions

hal-02947040 , version 1 (23-09-2020)

Identifiants

  • HAL Id : hal-02947040 , version 1

Citer

Ludovic Jason, Jean-Yves Malo, David Plancq, Christophe Gallé, Shahrokh Ghavamian. Mechanical behaviour of prestressed reinforced concrete vessels as an option to replace GFR reference primary circuit. ESOPE 2010, Jul 2010, Paris, France. ⟨hal-02947040⟩

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