Investigation on failure assessment method for nuclear graphite components

Super fine-grained graphite is a type of advanced nuclear graphite which was developed for Molten Salt Reactor (MSR). It is necessary to establish a failure assessment method used for nuclear graphite components in MSR. A modified assessment approach based on ASME BPVC-III-5_2017 is presented. The n...

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Bibliographic Details
Published inNuclear engineering and technology Vol. 52; no. 1; pp. 206 - 210
Main Authors Gao, Yantao, Tsang, Derek K.L.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.2020
Elsevier
한국원자력학회
Subjects
ASME
Graphite
KTA3232
Molten salt reactor
원자력공학
KTA3232
Molten salt reactor
ASME
Graphite
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Summary:Super fine-grained graphite is a type of advanced nuclear graphite which was developed for Molten Salt Reactor (MSR). It is necessary to establish a failure assessment method used for nuclear graphite components in MSR. A modified assessment approach based on ASME BPVC-III-5_2017 is presented. The new approach takes a new parameter, KIC, into account and abandons the parameter, grain size, which is unrealistic for super fine-grained graphite as the computation is enormous if we use conventional methods. Three methodologies (KTA 3232, ASME, New approach) were also evaluated by theoretical prediction and experimental verification. The results indicated the new developed code can be used for design and failure assessment of super fine-graphite components and has more extensive applicability.
ISSN:1738-5733
2234-358X
DOI:10.1016/j.net.2019.07.003