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Suzuki, Ryosuke*; Matsubara, Masaaki*; Yanagihara, Seiji*; Morijiri, Mitsugu*; Omori, Atsushi*; Wakai, Takashi
Procedia Materials Science, 12, p.24 - 29, 2016/00
Times Cited Count：2 Percentile：74.36(Engineering, Mechanical)In this study, the plastic collapse strength of asymmetry multiple circumferential notched stainless steel pipes subjected to combined axial tension and bending is investigated experimentally and is compared with the theoretical plastic collapse strength. In addition, the potential is discussed for the simplification of structural integrity evaluation of multiple cracked piping. The integrity of the asymmetry multiple circumferential notched stainless steel pipes subjected to combined axial tension and bending can be evaluated conservatively using the theoretical plastic collapse strength for the pipe with multiple notches calculated based on the elastic-perfectly plastic model.
Takahashi, Koji; Kobayashi, Noriyuki; Omori, Junji; Suzuki, Satoshi; Kasugai, Atsushi; Sakamoto, Keishi
Fusion Science and Technology, 52(2), p.266 - 280, 2007/08
Times Cited Count：25 Percentile：83.32(Nuclear Science & Technology)Progress on design of an ITER equatorial EC Launcher with analytical and R&D studies of the components is described. The modified design of the front shield module is proposed with electromagnetic and structure analysis. The analytical investigation of the modified steering mirror design shows that maximum temperature and stress intensity are 289
C and 336 MPa on the mirror surface (copper alloy) and the inner surface of cooling tube (SS316) in the mirror, respectively. These results are less than allowable level. High heat irradiation experiment of the mirror mock-up and fatigue test of the spiral tube were carried out and their results convinced that the concept of the steering mirror structure was feasible. The results on neutron irradiation test of the composing material and the alternatives such as polyimide and liquid crystal polymer for an ultrasonic motor indicate that the motor with those materials is available for the ITER launcher.
Hu, L.*; Akino, Noboru; Ebisawa, Noboru; Honda, Atsushi; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; Kuriyama, Masaaki; Kusaka, Makoto*; Mogaki, Kazuhiko; et al.
JAERI-Tech 99-057, 16 Pages, 1999/08
no abstracts in English
Kuriyama, Masaaki; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Honda, Atsushi; H.Liquen*; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; Mogaki, Kazuhiko; et al.
Journal of Nuclear Science and Technology, 35(11), p.739 - 749, 1998/11
Times Cited Count：40 Percentile：92.5(Nuclear Science & Technology)no abstracts in English
Kawai, Mikito; Akino, Noboru; Ebisawa, Noboru; Honda, Atsushi; Ito, Takao; Kazawa, Minoru; Kuriyama, Masaaki; Mogaki, Kazuhiko; Oga, Tokumichi; Ohara, Hiroshi; et al.
JAERI-Tech 98-042, 32 Pages, 1998/09
no abstracts in English
Kuriyama, Masaaki; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Honda, Atsushi; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; Kusaka, Makoto*; H.Liquen*; et al.
Fusion Technology 1998, 1, p.391 - 394, 1998/00
no abstracts in English
Kuriyama, Masaaki; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Hanada, Masaya; Honda, Atsushi; Ito, Takao; Kawai, Mikito; Kazawa, Minoru; *; et al.
Proceedings of 17th IEEE/NPSS Symposium Fusion Engineering (SOFE'97), 1, p.405 - 408, 1998/00
no abstracts in English
Ejiri, Mitsuru*; Kitamura, Kazunori*; Araki, Takao*; Omori, Junji*; Asano, Shiro*; Hayakawa, Atsuro*; Shibama, Yusuke; Masaki, Kei; Sakasai, Akira
no journal, ,
In the operation of tokamak, such loads as electromagnetic and seismic are assumed to be imposed on the vacuum vessel (VV), and not a little thermal expansion takes place when VV is baked. The gravity support leg (GS) has to support the loads described above in addition to the dead weight of VV including in-vessel components and compensate deformation. The GS is equipped with plate spring (PS) to have both stiffness and flexibility. In this study, the buckling strength of the PSs was evaluated. The effect of the initial imperfection of the PSs which is assumed to result from machining or welding process on the buckling strength was also studied. It is concluded that GS has sufficient buckling strength against assumed initial imperfections.
