Open AccessInvestigation of the elastic modulus and internal friction temperature dependences for the fuel rods by the resonance method tested by the modernized high-temperature device in hot cell
Author(s) -
A. A. Moshev,
I. I. Rod’ko,
S. P. Martynenko,
S. S. Martynenko,
A. N. Ableyev,
А. В. Берестов,
I. A. Yudin,
D. Yu. Gerasimov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1439/1/012013
Subject(s) - rod , elastic modulus , materials science , internal friction , shell (structure) , mode (computer interface) , modulus , resonance (particle physics) , composite material , mechanics , physics , computer science , atomic physics , medicine , alternative medicine , pathology , operating system
using the modernized high-temperature installation, the elastic characteristics and internal friction of the fuel rod shells were investigated in hot cell in order to update computer codes for WWER-1000 fuel rods. The elastic characteristics of the shell are analytically described and obtained a numerical shape factor of the first longitudinal frequency is calculated. There is description of new measuring units that provide data gathering by automatic or half-automatic mode. The elastic modulus and internal friction temperature dependences are determined by application of high-temperature modernized device that provides carrying out experiments at a temperature of 1160 K. Obtained effect could be interpreted by the crushing of the structure of the material.