Simulation of Be armour cracking under ITER-like transient heat loads

S. Pestchanyi; B. Spilker; B. Bazylev

doi:10.1016/j.nme.2016.06.007

Nuclear Materials and Energy (Dec 2016)

Simulation of Be armour cracking under ITER-like transient heat loads

S. Pestchanyi,
B. Spilker,
B. Bazylev

Affiliations

S. Pestchanyi: Karlsruhe Institute of Technology, INR, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany
B. Spilker: Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung, 52425 Jülich, Germany
B. Bazylev: Karlsruhe Institute of Technology, INR, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany

DOI: https://doi.org/10.1016/j.nme.2016.06.007
Journal volume & issue: Vol. 9, no. C
pp. 98 – 103

Abstract

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Simulation of beryllium cracking under action of multiple severe surface heatings has been performed using the PEGASUS-3D code and verified by experiments in the JUDITH 1 facility. Analysis of the results has revealed beryllium thermo conductivity degradation under action of repetitive pulsed heat load due to accumulation of the cracks in the surface layer. Thermo conductivity degradation is found to be at least 4 times after 100 pulses in JUDITH 1 facility. An analytical model for the Be cracking threshold under action of arbitrary heat pulses has been developed.

Published in Nuclear Materials and Energy

ISSN: 2352-1791 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-materials-and-energy/

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