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Matsui, Shingo*; Muto, Yasushi*; Shiina, Yasuaki
Nihon Genshiryoku Gakkai Wabun Rombunshi, 2(2), p.175 - 186, 2003/06
no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi
Nihon Kikai Gakkai Rombunshu, A, 69(679), p.682 - 688, 2003/03
no abstracts in English
Kaji, Yoshiyuki; Tsuji, Hirokazu; Nishi, Hiroshi; Muto, Yasushi; Penkalla, H. J.*; Schubert, F.*
Journal of Nuclear Science and Technology, 39(8), p.923 - 928, 2002/08
Times Cited Count：8 Percentile：47.9(Nuclear Science & Technology)A series of uniaxial and multiaxial creep tests was carried out on Hastelloy XR and Ni-Cr-W superalloy, which were developed as the high temperature structural materials for nuclear application at the JAERI, in order to investigate multiaxial creep behavior of these materials and to verify the laws for the description of deformation under multiaxial loadings. Norton's creep law and von Mises' flow rule were applied to the prediction of multiaxial creep behavior of a tube under some significant loading conditions. In most cases the multiaxial creep behavior of these materials were successfully described with the constitutive equations based on the material parameters fitting uniaxial creep test results, though a few exceptional cases were observed. The present study has revealed that the method based on Norton's creep law and von Mises' flow rule are basically applicable for the description of the multiaxial creep behavior for Hastelloy XR and Ni-Cr-W superalloy as the conventional design method.
Ishiyama, Shintaro; Muto, Yasushi; Fumizawa, Motoo; Tsukazaki, Kazuo*
Nihon Genshiryoku Gakkai Wabun Rombunshi, 1(2), p.164 - 176, 2002/06
no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi
Nihon Kinzoku Gakkai-Shi, 66(6), p.662 - 669, 2002/06
no abstracts in English
Nishihara, Tetsuo; Muto, Yasushi; Uchida, Shoji*; Yoshioka, Naoki*
JAERI-Tech 2001-077, 44 Pages, 2001/12
JAERI-Tech-2001-077.pdf:2.16MB
JAERI has conducted the feasibility study of the HTGR gas turbine system from 1996 to 2000 sponsored by MEXT. This report concludes the safety criteria and rationalization of the safety items in the HTGR system.With respect to the safety criteria, the same value for the LWR is selected as the limit of radiation exposure. Probability of the design basis event (DBE) and beyond design basis event (BDBE) is set lower than those for the LWR to get higher safety margin. Adequate initial events and mitigation system are selected to consider the event sequence. The concept of the probability analysis is applied to identify DBEs and BDBEs. It is found that some safety items can be rationalized in consideration of the safety features of the HTGR. Finally, the safety class and design category of the items in the HGTR-GT are classified.
Ishiyama, Shintaro; Muto, Yasushi; Ogata, Hiroshi*; Yamada, Seiya*
Nihon Genshiryoku Gakkai-Shi, 43(11), p.1136 - 1148, 2001/11
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi
Nihon Kinzoku Gakkai-Shi, 65(11), p.993 - 1001, 2001/11
no abstracts in English
Muto, Yasushi; Kunitomi, Kazuhiko
Karyoku Genshiryoku Hatsuden, 52(10), p.1279 - 1286, 2001/10
no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi; Ogata, Hiroshi*; Kamito, Yoshimi*
Nihon Genshiryoku Gakkai-Shi, 43(7), p.708 - 717, 2001/07
Times Cited Count：3 Percentile：27.1(Nuclear Science & Technology)no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi; Tanihira, Masanori*; Ogata, Kan*; Kamito, Yoshimi*; Igari, Toshihide*
Nihon Genshiryoku Gakkai-Shi, 43(6), p.603 - 611, 2001/06
Times Cited Count：4 Percentile：33.39(Nuclear Science & Technology)no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi; Nishii, Takashi*; Kasaba, Michihiro*
Nihon Kinzoku Gakkai-Shi, 65(6), p.524 - 533, 2001/06
no abstracts in English
Tsuji, Hirokazu; Nishi, Hiroshi; Kaji, Yoshiyuki; Muto, Yasushi; Penkalla, H. J.*; Schubert, F.*
Proceedings of the 7th International Conference on Creep and Fatigue at Elevated Temperatures (CREEP7), p.101 - 106, 2001/06
A series of uniaxial and multiaxial creep tests was carried out on Hastelloy XR and Ni-Cr-W superalloy, which were developed as the high temperature structural materials for nuclear application at the JAERI, in order to investigate multiaxial creep behaviors of these materials. Norton's creep law and von Mises' flow rule were applied to the prediction of multiaxial creep behavior of a tube under some significant loading condition. In most cases the multiaxial creep behavior of these materials were successfully described with the constitutive equations based on the material parameter fitting uniaxial creep test results, though a few exceptional cases were observed. The present study has revealed that the method based on Norton's creep law and von Mises' flow rule are basically applicable for the description of the multiaxial creep behavior for Hastelloy XR and Ni-Cr-W superalloy as the conventional design method.
Matsui, Shingo*; Muto, Yasushi; Shiina, Yasuaki
JAERI-Tech 2000-083, 107 Pages, 2001/01
JAERI-Tech-2000-083.pdf:3.46MB
no abstracts in English
Muto, Yasushi; Ishiyama, Shintaro; Inomata, Asako*; Kishibe, Tadaharu*; Minatsuki, Isao*; Matsumoto, Iwao*; Levet, F.*
Proceedings of ASME Turbo Expo 2001 (CD-ROM), 8 Pages, 2001/00
no abstracts in English
Tanaka, Toshiyuki; Muto, Yasushi
Karyoku Genshiryoku Hatsuden, 51(10), p.318 - 323, 2000/10
no abstracts in English
Muto, Yasushi; Ishiyama, Shintaro
Nihon Genshiryoku Gakkai-Shi, 42(10), p.1020 - 1027, 2000/10
Times Cited Count：1 Percentile：12.1(Nuclear Science & Technology)no abstracts in English
Ishiyama, Shintaro; Muto, Yasushi; Kasaba, Michihiro*; Kaneta, Takayoshi*
Nihon Genshiryoku Gakkai-Shi, 42(3), p.196 - 203, 2000/03
Times Cited Count：1 Percentile：12.1(Nuclear Science & Technology)no abstracts in English
Muto, Yasushi; Ishiyama, Shintaro; Fukuyama, Yoshitaka*; Okumoto, Junji*; Kishibe, Tadaharu*; Yamada, Seiya*
Proceedings of 45th ASME International Gas Turbine & Aeroengine Technical Congress, Exposition and Users Symposium (CD-ROM), 8 Pages, 2000/00
no abstracts in English
Yan, X.; Shiozawa, Shusaku; Kunitomi, Kazuhiko; Muto, Yasushi; Miyamoto, Yoshiaki; Katanishi, Shoji
Proceedings of 8th International Conference on Nuclear Engineering (ICONE-8) (CD-ROM), p.8 - 0, 2000/00
no abstracts in English
