Thermal transient test and strength evaluation of a tubesheet structure made of Mod.9Cr-1Mo steel, 2; Creep-fatigue strength evaluation
改良9Cr-1Mo鋼製管板構造試験体の熱過渡試験と強度評価,2; クリープ疲労強度評価
安藤 勝訓; 長谷部 慎一; 小林 澄男; 笠原 直人*; 豊吉 晃*; 大前 隆広*; 江沼 康弘*
Ando, Masanori; Hasebe, Shinichi; Kobayashi, Sumio; Kasahara, Naoto*; Toyoshi, Akira*; Omae, Takahiro*; Enuma, Yasuhiro*
In this study, the strength of a tubesheet test model simulating a semispherical tubesheet structure subjected to cyclic thermal transients was evaluated using the finite element analysis (FEA). A test model made of Mod.9Cr-1Mo steel was subjected to 1,873 cycles of severe thermal transient loading using a large-scale sodium loop, in which elevated-temperature sodium at 600$$^{circ}$$C and 250$$^{circ}$$C was flowed repeatedly and kept at the final temperature for 2 and 1 h, respectively. Heat transfer analysis and stress analysis were performed using the sodium temperature data measured during the test. Then, the elastic and inelastic stress analysis results were used to investigate the failure mechanism by creep-fatigue damage and evaluate the failure strength. The evaluation based on the results of inelastic analysis estimated the number of cycles to failure within a factor of 3.
使用言語 : English
掲載資料名 : Nuclear Engineering and Design
: 275
ページ数 : p.422 - 432
発行年月 : 2014/08
出版社名 : Elsevier
特許データ :
論文URL :
キーワード : no keyword
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 : 経済産業省
登録番号 : AA20130396
抄録集掲載番号 : 42000991
論文投稿番号 : 14651
Accesses  (From Jun. 2, 2014)
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