Fumitoshi Sakata
Mitsubishi Heavy Industries
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Featured researches published by Fumitoshi Sakata.
Volume 5: High Pressure Technology; Nondestructive Evaluation Division; Student Paper Competition | 2008
Isoharu Nishiguchi; Fumitoshi Sakata; Seiichi Hamada
A method to investigate pipe wall thinning using guided waves has been developed for pipes in thermal power generation facilities. In this paper, the reflection coefficient and the transmission coefficient are derived for the torsional waves which propagate along a pipe and a simplified method to predict the waveform is proposed. The predictions of the waveforms by the FEM and a simplified method based on the reflection of torsional waves are also examined by comparing with experimental data.Copyright
ASME 2008 Pressure Vessels and Piping Conference | 2008
Fumitoshi Sakata; Masashi Ozaki; Ko Takeuchi; Nobuhiko Nishimura; Akira Shiibashi; Masahiro Kobayashi; Hideshi Tezuka
This report presents the development of technology enabling temporary countermeasures for the on-site application of life-extending induction heating to high energy pipe weldments having experienced degradation due to creep. The results of an investigation into the cross-sectional structure thus suggested that material life can be extended by the application of regenerative heat treatment. The life-extending effect of regenerative heat treatment is greatest toward the short-life vicinity of the pipes outer surface, thus providing an efficient life extension. The remaining life converted for an actual installation from the result of real scale creep burst test increased from 63,000hrs before treatment to 200,000hrs after treatment, confirming that life can be extended by approximately 130,000hrs.Copyright
Archive | 2008
Shintaro Kumano; Nobuhiko Nishimura; Mayumi Saito; Fumitoshi Sakata; Koji Satake; 宏次 佐竹; 文稔 坂田; 真由美 斎藤; 信太郎 熊野; 宣彦 西村
Archive | 2009
Nobuhiko Nishimura; Fumitoshi Sakata; Mayumi Saito; Kouji Satake; Shintaro Kumano
Archive | 2007
Masashi Ozaki; Nobuhiko Nishimura; Fumitoshi Sakata; Masaru Kodama; Masahiro Kobayashi; Akira Shiibashi; Hideshi Tezuka; Ko Takeuchi
Archive | 2006
Masahiro Kobayashi; Katsu Kodama; Nobuhiko Nishimura; Masashi Ozaki; Fumitoshi Sakata; Hiroshi Shiibashi; Takumi Takeuchi; Hideshi Tezuka; 児玉 克; 文稔 坂田; 雅浩 小林; 政司 尾崎; 英志 手塚; 啓 椎橋; 巧 竹内; 宣彦 西村
Archive | 2013
渡辺 大剛; Hirotsuyo Watanabe; 大剛 渡辺; 坂田 文稔; Fumitoshi Sakata; 文稔 坂田; 時吉 巧; Takumi Tokiyoshi; 巧 時吉; 中馬 康晴; Yasuharu Chuma; 康晴 中馬; 拓也 深堀; Takuya Fukabori; 金巻 裕一; Yuichi Kanamaki; 裕一 金巻; 大山 博之; Hiroyuki Oyama; 博之 大山; 真太郎 松本; Shintaro Matsumoto; 正昭 藤田; Masaaki Fujita; 一郎 大津; Ichiro Otsu
Archive | 2009
Nobuhiko Nishimura; 西村宣彦; Fumitoshi Sakata; 坂田 文稔; Mayumi Saito; 斎藤真由美; Kouji Satake; 佐竹宏次; Shintaro Kumano; 熊野信太郎
Archive | 2011
Masatsugu Shimizu; 正嗣 清水; Nobuyoshi Komai; 伸好 駒井; Hiroyuki Oyama; 博之 大山; Toshitaka Nakamura; 敏孝 中村; Noriyuki Miyazawa; 敬之 宮澤; Fumitoshi Sakata; 文稔 坂田; Toshiaki Nishio; 敏昭 西尾; Shinichi Tsuji; 伸一 辻
Archive | 2005
Takashi Kuroishi; Nobuhiko Nishimura; Hirotoshi Matsumoto; Akira Shiibashi; Fumitoshi Sakata; Kiyotaka Aoki