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Keywords: brittle crack
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Proceedings Papers

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

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

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

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

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-11-448
... 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

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

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

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

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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