A Statistical Analysis of the Mechanical Properties of PGA Graphite Samples Taken from Magnox Nuclear Reactors

被引：0
|
作者：
McNally, Kevin [1 ]
Tan, Emma [1 ]
Warren, Nick [1 ]
Heys, Graham B.
Marsden, Barry J.
机构：
[1] Hlth & Safety Lab, Math Sci Unit, Buxton, England
来源：
SECURING THE SAFE PERFORMANCE OF GRAPHITE REACTOR CORES | 2010年 / 328期
关键词：
Strength; Dynamic Young's modulus; Radiolytic weight loss; PGA graphite; STRENGTH; POROSITY;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Results of statistical analyses of strength and dynamic Young's modulus (DYM) data are presented for installed set and trepanned graphite samples taken from various Magnox reactors. Also DYM data from graphite samples irradiated in a recent Material Test Reactor (MTR) programme are presented. In reactor, the properties of these samples were modified by fast neutron irradiation and radiolytic weight loss. Both conventional decay and threshold models were fitted to these data as a function of weight loss. The strength data showed evidence of threshold limit in strength, whereas the DYM data did not. At low fast neutron dose, both strength and DYM appear to be influenced by the ratio between fast neutron damage and weight loss. The Brazilian disc test is considered to be unsuitable for samples with high weight loss due to localised crushing at the load points.
引用
收藏
页码：95 / 102
页数：8
相关论文
共 50 条
  • [1] The effects of thermal annealing on the mechanical properties of PGA graphite
    Metcalfe, Martin P.
    Payne, John F. B.
    Management of Ageing in Graphite Reactor Cores, 2007, (309): : 35 - 42
  • [2] A statistical analysis of pores and microcracks in nuclear graphite
    Huang, Qing
    Tang, Hui
    SURFACE AND INTERFACE ANALYSIS, 2022, 54 (01) : 37 - 44
  • [3] GRAPHITE MECHANICAL PROPERTIES AS PREDICTED FROM A PHYSICALLY BASED STATISTICAL THEORY OF FRACTURE
    BUCH, JD
    AMERICAN CERAMIC SOCIETY BULLETIN, 1971, 50 (09): : 792 - &
  • [4] MECHANICAL ANALYSIS FOR SOLID CYLINDRICAL FUEL ELEMENTS OF NUCLEAR REACTORS
    MA, BM
    NUCLEAR ENGINEERING AND DESIGN, 1966, 3 (01) : 11 - &
  • [5] Statistical analysis of mechanical properties of wood
    Agarana, Michael C.
    Akinlabi, Esther T.
    Bishop, Sheila A.
    INTERNATIONAL JOURNAL OF ADVANCED AND APPLIED SCIENCES, 2019, 6 (07): : 64 - 67
  • [6] Investigation of the representativity of samples taken from vent pipes at nuclear power stations
    Sosnovskii, R.I.
    Fedchenko, T.K.
    Minin, S.A.
    2000, IAPC Nauka/Interperiodica (47)
  • [7] STATISTICAL BEHAVIOR OF MECHANICAL-PROPERTIES FOR GRAPHITE-EPOXY COMPOSITES
    SWIERCINSKI, M
    EXPERIMENTAL MECHANICS, 1978, 18 (05) : N41 - N42
  • [8] Analysis of statistical model properties from discrete nuclear structure data
    Firestone, Richard B.
    CNR*11 - THIRD INTERNATIONAL WORKSHOP ON COMPOUND NUCLEAR REACTIONS AND RELATED TOPICS, 2012, 21
  • [9] Structural and mechanical properties of different types of graphite used in nuclear applications
    Kurpaska, L.
    Frelek-Kozak, M.
    Wilczopolska, M.
    Bonicki, W.
    Diduszko, R.
    Zaborowska, A.
    Wyszkowska, E.
    Clozel, M.
    Kosinska, A.
    Cieslik, I.
    Duchna, M.
    Jozwik, I.
    Chmurzynski, W.
    Olszewski, G.
    Zajac, B.
    Jagielski, J.
    JOURNAL OF MOLECULAR STRUCTURE, 2020, 1217 (1217)
  • [10] Numerical modelling of the effects of porosity changes on the mechanical properties of nuclear graphite
    Berre, C.
    Fok, S. L.
    Marsden, B. J.
    Babout, L.
    Hodgkins, A.
    Marrow, T. J.
    Mummery, P. M.
    JOURNAL OF NUCLEAR MATERIALS, 2006, 352 (1-3) : 1 - 5
12345