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Cr-1Mo and Mod.9Cr-1Mo steel at elevated temperature designAndo, Masanori; Okajima, Satoshi; Imo, Kazumichi*
Proceedings of 2019 ASME Pressure Vessels and Piping Conference (PVP 2019) (Internet), 7 Pages, 2019/07
For the required thickness estimation against buckling in the elevated temperature design, the external pressure chart for two kinds of ferritic steel, 2 Cr-1Mo and Mod.9Cr-1Mo steel, was developed. On the basis of the guideline described in the ASME BPVC Section II, Part D, Mandatory Appendix 3 with mechanical and physical properties provided in the JSME fast reactor code, the external pressure charts for each material were constructed. As the result, three external pressure charts with digital values were proposed for elevated temperature design. And the rationalization effect from the current alternative using was evaluated by the sample problem. This proposal resolves the two issues. One is alternative use of inferior material strength chart over the 150
C. The other is the external pressure chart above 480C for these ferritic steels are not available.
Imo, Kazumichi; Onuki, Koji; Kikuchi, H.; Morishita, Masaki; Igawa, Kenichi*; Nishibayashi, Yohei; Ikeda, Makinori
JNC TN2400 2003-004, 78 Pages, 2004/03
JNC-TN2400-2003-004.pdf:4.74MB
About the secondary system floor liner of Monju, the mechanical soundness of a floor liner to the thermal load conditions by combustion of leak sodium was evaluated by large displacement inelastic analysis and the partial structure model test.In large displacement inelastic analysis, it was confirmed that heat strain of a floor liner was less than the standard value of the strain for no through-wall crack. In addition, the influence evaluation by a temperature increasing rate, liner board thickness, and the existence of corrosion thinning was performed. The result, the influence on the maximum strain was small in any parameter.In the partial structure model test, even when a strain more excessive than the standard value of strain was given, it was confirmed no through-wall crack in a liner plate.In addition, this report improves the evaluation conditions of the conventional research report [1], and resummarizes them to detailed design evaluation.
Sukekawa, Masayuki*; Imo, Kazumichi*; Kawakami, Mitsuo*
JNC TJ9430 2001-002, 98 Pages, 2002/03
JNC-TJ9430-2001-002.pdf:2.68MB
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Cr-1Mo steel and Mod. 9Cr-1Mo steel at elevated temperatureOkajima, Satoshi; Imo, Kazumichi*
no journal, ,
no abstracts in English
Kanayama, Hideyuki; Nagae, Yuji; Onizawa, Takashi; Wakai, Takashi; Imo, Kazumichi*
no journal, ,
no abstracts in English
Matsui, Kazuaki; Imo, Kazumichi*; Mitsumoto, Rika; Ando, Masanori; Futagami, Satoshi
no journal, ,
no abstracts in English