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タイトル :Buckling Assessment Procedure for Large Diameter Vessel with Local Thin Area Subjected to Combined Pressure and External Moment
著者 :MUKAIMACHI, Norihiko / KONOSU, Shinji
作成日 :2009-2
要約(Abstract) :The newly-developed p-M diagram provides a means for readily evaluating the collapse and/or buckling load of pressure equipment with external flaws simultaneously subjected to internal pressure, p and external bending moment, M due to earthquake, etc. In this paper, some FEAs for large diameter vessels with an external flaw were conducted under (1) pure external bending moment, and (2) subjected simultaneously to both internal pressure and external bending moment, in order to determine the plastic collapse load by applying the twice-elastic slope (TES) as recommended by ASME and to determine the buckling load. The p-M line adopted in the Ibaraki FFS rule based on the measured yield stress indicates that the safety margin for the TES loads at the LTA is about 1.2-1.8 and 1.5-2.0 for the buckling loads. The Ibaraki FFS rule that prevents buckling by applying Donnell’s equation of FS=2 can assure adequate levels of integrity and safety.
収録種別 :雑誌掲載論文
公開者・出版者 :Elsevier
出版社版URL :http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V4D-4V75HRT-1&_user=141568&_coverDate=02%2F28%2F2009&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1390543571&_rerunOrigin=google&_acct=C000011558&_version=1&_urlVersion=0&_userid=141568&md5=2542beb58965b6d46db580952c1c19e2
URI :http://hdl.handle.net/10109/1418
掲載雑誌 :Nuclear Engineering and Design Vol.239 no.2 p.221 -230
出現コレクション:雑誌掲載論文(工学部)

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