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Onizawa, Takashi; Shimomura, Kenta; Kato, Shoichi; Wakai, Takashi
no journal, ,
no abstracts in English
Asayama, Tai
no journal, ,
Cose Case N-875 was issued in 2017 as an alternative requirement to the ASME Boilier and Pressure Vessel Code Section XI Division 3. The Case is based on the System Based Code concept and allows the use of more reasonable inspection plans than those currently applied. This presentation makes an introduction to the Case along with discussions that took place within the Code Committee. Also described is a related code development activity in the ASME Committee that incorporates the logic flow of the Case.
Nishida, Akemi; Choi, B.; Shiomi, Tadahiko; Li, Y.
no journal, ,
With the development of computational methods in engineering and advanced computer technologies, three-dimensional modeling based on actual shapes are possible in structural analysis; in recent years, this method has been utilized in various applications, such as stress and response analyses. Three-dimensional models are also being used for reactor buildings to support earthquake resistance evaluations, among others. However, the quality of the three-dimensional model depends on the analyst, and confirming the validity of the obtained result is a challenge because of the difficulty of performing full scale experiments for the reactor building. Based on these situations, JAEA has started the R&D to standardize the method of constructing the three-dimensional model of the reactor building. The outline of this standardization approach is shown in this presentation.