Skip to Main content Skip to Navigation
Conference papers

Insertion reliability studies for the RBC-type control rods in ASTRID

Abstract : This paper reports on preliminary studies performed regarding the insertion reliability of the RBC-type Control Rods designed for the ASTRID Sodium-cooled Fast Reactor. At this stage, the primary aim of the analysis is to evaluate the mechanical behavior of RBC Control Rods under Emergency Shutdown conditions, for which reactor core structures are subjected to significant misalignments (including earthquakeimposed displacements). Using a Finite Element Model based on the Cast3M solver and developed specifically for these studies, computations are performed that allow assessing contact reactions (and the associated friction forces and contact pressures), deformations and stresses (mostly due to bending-induced deformations) which are considered for design. Based on these preliminary results, some optimization of the Control Rod design is proposed that ensures some stable behavior all along the rod drop, with substantial design margins
Complete list of metadatas

Cited literature [6 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-02435061
Contributor : Amplexor Amplexor <>
Submitted on : Friday, January 10, 2020 - 3:12:47 PM
Last modification on : Tuesday, April 28, 2020 - 11:28:16 AM

File

201600004055.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : cea-02435061, version 1

Collections

CEA | DEN

Citation

M. Zabiego, D. Lorenzo, T. Helfer, E. Guillemin. Insertion reliability studies for the RBC-type control rods in ASTRID. International Conference on ast Reactors and Related Fuel Cycles ext Generation Nuclear Systems for Sustainable Development(FR17), Jun 2017, Yekaterinburg, Russia. ⟨cea-02435061⟩

Share

Metrics

Record views

13

Files downloads

12