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1-20 of 23
Keywords: brittle crack
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Proceedings Papers
Kazuyuki Matsumoto, Tsutomu Fukui, Shota Nanno, Shuji Aihar, Tomoya Kawabata, Kazuki Shibanuma, Takehiro Inoue, Teppei Okawa, Tetsuya Tagawa, Hisakazu Tajika, Hiroki Imamura
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-580
... Brittle Crack Arrest Toughness for Extremely Thick Steel Plates -Required Kca Value of Steel Plates with Thickness of 100 mm Used in Ultra-Large Container Ships- Kazuyuki Matsumoto1, Tsutomu Fukui1, Shota Nanno1, Shuji Aihar2, Tomoya Kawabata2, Kazuki Shibanuma2, Takehiro Inoue3, Teppei Okawa4...
Proceedings Papers
Takehiro Inoue, Tetsuya Tagawa, Teppei Okawa, Hisakazu Tajika, Hiroki Imamura, Kazuyuki Matsumoto, Tsutomu Fukui, Shota Nanno, Tomoya Kawabata, Kazuki Shibanuma, Shuji Aihara
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-418
... ABSTRACT Brittle crack arrest (BCA) steels are used in the upper deck or hatch side coaming of large container ships in order to prevent fatal brittle fracture accidents. The International Association of Classification Societies (IACS) defined BCA steels for container ships by using the Kca...
Proceedings Papers
Teppei Okawa, Takahiro Kamo, Hitoshi Furuya, Hironori Wakamatsu, Yasunori Takahashi, Toshimichi Nagao, Hiroshi Nishigami, Atsushi Iida, Sho Tomita, Shuichi Hirai, Masahiko Mitsumoto, Shutaro Shinpo
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-593
... fracture. Therefore, in addition to the properties that suppress the initiation of a brittle crack, properties that prevent the propagation of a brittle crack, even when a crack contingently takes place, are required for the steel plates. In this study, various kinds of fracture evaluation tests were...
Proceedings Papers
Tsunehisa Handa, Satoshi Igi, Hisakazu Tajika, Tetsuya Tagawa, Kazukuni Hase, Tsutomu Fukui, Shuji Aihara
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-430
... ABSTRACT On the background of increasing demand in ship transportation, capacity of container ship is recently growing to achieve low cost shipping. The use of extremely thick steel plates is recently required around hatch side structure to realize ultra large container ships. Brittle crack...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-643
... crack thickness direction brittle crack test plate Effect of Toughness Distribution in the Thickness Direction on Long Brittle Crack Propagation/Arrest Behavior of Heavy Gauge Shipbuilding Steel Tsunehisa Handa1, Satoshi Igi1, Kenji Oi1, Kimihiro Nishimura2, Hisakazu Tajika1and Tetsuya Tagawa1...
Proceedings Papers
Tsunehisa Handa, Masanobu Toyoda, Noboru Kiji, Koutarou Inose, Seita Watanabe, Hiroshi Shiomi, Satoshi Igi, Kenji Oi
Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-718
... Abstract Long brittle crack arrestability is extremely important in welded joints of heavy gauge steel plates used in large container ships. Recently, much attention has been focused on potential long crack propagation along welds produced by large heat input welding. This paper examines...
Proceedings Papers
Yusuke Shimada, Takehiro Inoue, Tomoya Kawabata, Tsunehisa Handa, Masahito Kaneko, Kei Sugimoto, Shuji Aihara, Kazuki Shibanuma
Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-609
... Abstract Run-arrest behavior of brittle crack in steel has been investigated since a lot of severe accidents by brittle failure. In order to evaluate arrest toughness of materials, various test methods were developed. At the moment temperature gradient type ESSO test is the most popular method...
Proceedings Papers
Tsunehisa Handa, Takahiro Sakimoto, Satoshi Igi, Kenji Oi, Masanobu Toyoda, Takashi Takeda, Noboru Kiji, Koutarou Inose
Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-609
... ABSTRACT Long brittle crack arrestability is extremely important in welded joints of heavy gauge steel plates used in large container ships. Recently, much attention has been focused on potential long crack propagation along welds using large heat input. This paper examines the application...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-671
... ABSTRACT: Recently, there have been the increase of ship size and the development of oil and gas in arctic region. These trends have led to the requirements such as high strength, good toughness at low temperature and good weldability. The evaluation of the brittle crack arrest toughness value...
Proceedings Papers
Akifumi Kubo, Hiroshi Yajima, Shuji Aihara, Hitoshi Yoshinari, Kazuhiro Hirota, Masanobu Toyoda, Takaaki Kiyosue, Takehiro Inoue, Tsunehisa Handa, Tomoya Kawabata, Tokutaka Tani, Yoshiya Yamaguchi
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-642
... ABSTRACT: Brittle fracture of hull structures has a possibility to cause large-scale hull fractures and so it should be avoided. Therefore, it is important to ensure the hull structural integrity by preventing brittle cracks from being initiated and also by providing a proper means...
Proceedings Papers
Kei Sugimoto, Hiroshi Hiroshi, Shuji Aihara, Hitoshi Yoshinari, Kaszuhiro Hirota, Masanobu Toyoda, Takaaki Kiyosue, Takehiro Inoue, Tsunehisa Handa, Tomoya Kawabata, Tokutaka Tani, Akio Usami
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-643
... ABSTRACT: Brittle fracture of the hull structure has the possibility to cause serious structural damage and so it should be avoided. Therefore, it is important to ensure the hull structural integrity by preventing brittle cracks from being initiated and also by providing a proper means...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-618
... of arrestability in temperature-gradient ESSO tests (large scale crack-arrest test) is needed for arresting super-long brittle cracks (193 rd research committee of Japan Ship Research Association). Thus, in this paper, improvement in the arrestability of steel plates was achieved through investigating the effect...
Proceedings Papers
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-351
... Improvement of Arrestability for Brittle Crack for Welded joint? Development of Higher Toughness YP47 (460N/mm2) Class Steel Plate for Large Container Ships-3 Jun Otani1), Yuuji Funatsu2), Takehiro Inoue3), Hirouki Shirahata 4) 1) Oita Works, Nippon Steel Corporation, Oita, Japan. 2) Plate Sales...
Proceedings Papers
Gyu Baek An, Kang Mook Ryu, Joon Sik Park, Jong Sub Lee, Tae Dong Park, Yong Taek Shin, Ki Hyung Hank, Sung Ku Kang, Sang Hoon Jeong, Bong Jeung Chang, Yong Shim
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-448
... was investigated to prevent a catastrophic failure along the block joint of hatch side coaming. A brittle crack arrest technique was developed without block joint shift, using an arrest weld in the end of hatch side coaming weld line. INTRODUCTION Recent trends in shipbuilding and offshore industries are a huge...
Proceedings Papers
Takehiro Inoue, Yoshiya Yamaguchi, Hiroshi Yajima, Shuji Aihara, Hitoshi Yoshinari, Kazuhiro Hirota, Masanobu Toyoda, Takaaki Kiyosue, Tsunehisa Handa, Tomoya Kawabata, Tokutaka Tani
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-139
... ABSTRACT Brittle fracture of hull structure causes serious structural, fatal and environmental damage once it happens. However, if by chance a brittle crack initiates, it is extremely important that a backup brittle crack arresting function is provided to arrest its propagation and to ensure...
Proceedings Papers
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-627
... into practical application which are hard to initiate brittle cracks, and are capable of arresting brittle cracks even in the event of brittle crack occurrence. YP47steel plates have been manufactured on the basis of TMCP utilizing a variety of technologies; for example the technology for dispersing fine...
Proceedings Papers
Tsunehisa Handa, Toshiyuki Matsumoto, Hiroshi Yajima, Shuji Aihara, Hitoshi Yoshinari, Kazuhiro Hirota, Masanobu Toyoda, Takaaki Kiyosue, Takehiro Inoue, Tomoya Kawabata, Tokutaka Tani
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-497
... Effect of Structural Discontinuities of Welded Joints on Brittle Crack Propagation Behavior - Brittle Crack Arrest Design for Large Container Ships -3 - Tsunehisa Handa JFE Steel Corporation Chiba, Chiba, Japan Toshiyuki Matsumoto Nippon Kaiji Kyokai Chiba, Chiba, Japan Hiroshi Yajima Nagasaki...
Proceedings Papers
Yoshiya Yamaguchi, Hiroshi Yajima, Shuji Aihara, Hitoshi Yoshinari, Kazuhiro Hirota, Masanobu Toyoda, Takaaki Kiyosue, Shigeru Tanaka, Taku Okabe, Ko Kageyama, Yuji Funatsu, Tsunehisa Handa, Tomoya Kawabata, Tokutaka Tani
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-438
... ABSTRACT Brittle fractures of the hull structure cause serious structural damage, with the potential for both fatalities and environmental damage, once it happens. In recognition of this, ships are designed and constructed so as to ensure that brittle crack initiation does not occur. Further...
Proceedings Papers
Tomoya Kawabata, Kazuyuki Matsumoto, Tsubasa Ando, Hiroshi Yajima, Shuji Aihara, Hitoshi Yoshinari, Kazuhiro Hirota, Masanobu Toyoda, Takaaki Kiyosue, Takehiro Inoue, Tsunehisa Handa, Tokutaka Tani
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-464
... Development of Brittle Crack Arrest Toughness Kca Test Method - Brittle Crack Arrest Design for Large Container Ships -2 - Tomoya Kawabata Sumitomo Metal Industries, Ltd. Amagasaki-city, Hyogo, Japan Kazuyuki Matsumoto Nippon Kaiji Kyokai Chiyoda-ku, Tokyo, Japan Tsubasa Ando Nippon Kaiji Kyokai...
Proceedings Papers
Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-371
... gradient ESSO test was performed to measure K ca values with the variation of welding variables. Regardless of plate thickness, welding heat input is a key factor to control the propagation path of brittle crack in welded joints. INTRODUCTION Recently, as the containerships have been larger and larger...
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