Contact Phenomena between Load-Bearing Skeletons of Bowed Fuel Assemblies in PWRs with Mixed Cores

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F25%3A43973304" target="_blank" >RIV/49777513:23520/25:43973304 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0149197024004694" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0149197024004694</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.pnucene.2024.105519" target="_blank" >10.1016/j.pnucene.2024.105519</a>

Result language
angličtina
Original language name
Contact Phenomena between Load-Bearing Skeletons of Bowed Fuel Assemblies in PWRs with Mixed Cores
Original language description
The paper presents a comprehensive method for modelling contact interactions between two different types of fuel assemblies within a mixed core. Particular emphasis is placed on the hexagonal fuel assemblies commonly found in VVER reactors. The presence of bowed fuel assemblies may induce mutual contact, resulting in temporary or permanent contact conditions. This interaction, in conjunction with the vibration of core components, can lead to fretting wear of the load-bearing skeletons of fuel assemblies. By using the proposed computational model and experimentally estimated fretting wear parameters, the method allows detailed analysis of fretting wear as a function of various factors. These factors include operating conditions, distribution of fuel assembly types within the mixed core, burn-up state of contacting assemblies and the shape of their static deformation.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project
<a href="/en/project/GA23-07280S" target="_blank" >GA23-07280S: Identification and compensation of imperfections and friction effects in joints of mechatronic systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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