The enlargement of containership requires the higher tensile strength steel and thicker plate around the hatch coaming more than the prescribed classification rules. These call the concerns about the safety of brittle crack initiation and arrestability of hull structure. It is known that increasing of stress and thickness of plates will reduce the toughness of base metal and welding joints. Therefore, the authors conducted to assure the toughness of base metal and welding joint for new higher tensile strength steel of 460MPa yield strength (YP460) and 60mm thickness. It has been considered that weld assembled steel plate structure has some arrestability at intersections of plates, though there are no prescription on the rules. And it was reported that very thicker mother plate has not enough toughness to arrest brittle crack recently. The authors investigated the structural arrestability by model testing and FE analysis and established it. Furthermore, structural details for intersections were also established. Both preventing the brittle crack initiation and arresting the brittle crack of weld structure were described, focusing on developing higher yield strength and heavier thickness of YP460 for containership in this paper.
Skip Nav Destination
ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4822-7
PROCEEDINGS PAPER
Safety of Mega Container Ship Focusing on Brittle Crack Initiation and Arrest Behavior of Heavy Thickness Plate
Masanobu Toyoda,
Masanobu Toyoda
IHI Marine United Inc., Tokyo, Japan
Search for other works by this author on:
Noboru Kiji,
Noboru Kiji
IHI Marine United Inc., Tokyo, Japan
Search for other works by this author on:
Yoshiyuki Nakajima,
Yoshiyuki Nakajima
IHI Marine United Inc., Tokyo, Japan
Search for other works by this author on:
Tetsuo Okada,
Tetsuo Okada
IHI Marine United Inc., Tokyo, Japan
Search for other works by this author on:
Yasumasa Nakanishi,
Yasumasa Nakanishi
IHI Corporation, Yokohama, Kanagawa, Japan
Search for other works by this author on:
Koutarou Inose
Koutarou Inose
IHI Corporation, Yokohama, Kanagawa, Japan
Search for other works by this author on:
Masanobu Toyoda
IHI Marine United Inc., Tokyo, Japan
Noboru Kiji
IHI Marine United Inc., Tokyo, Japan
Yoshiyuki Nakajima
IHI Marine United Inc., Tokyo, Japan
Tetsuo Okada
IHI Marine United Inc., Tokyo, Japan
Yasumasa Nakanishi
IHI Corporation, Yokohama, Kanagawa, Japan
Koutarou Inose
IHI Corporation, Yokohama, Kanagawa, Japan
Paper No:
OMAE2008-57375, pp. 187-198; 12 pages
Published Online:
July 27, 2009
Citation
Toyoda, M, Kiji, N, Nakajima, Y, Okada, T, Nakanishi, Y, & Inose, K. "Safety of Mega Container Ship Focusing on Brittle Crack Initiation and Arrest Behavior of Heavy Thickness Plate." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 5: Materials Technology; CFD and VIV. Estoril, Portugal. June 15–20, 2008. pp. 187-198. ASME. https://doi.org/10.1115/OMAE2008-57375
Download citation file:
15
Views
Related Proceedings Papers
Related Articles
Application of Fracture Mechanics to Failure in Manatee Rib Bone
J Biomech Eng (June,2006)
Dynamic Fracture in Brittle Solids at High Rates of Loading
J. Appl. Mech (May,2003)
Computational Evaluation of Adhesion and Mechanical Properties of Nanolayered Erosion-Resistant Coatings for Gas Turbines
J. Eng. Gas Turbines Power (April,2011)
Related Chapters
Impact Testing
A Quick Guide to API 510 Certified Pressure Vessel Inspector Syllabus
Integrated Safety Assessment of Small Container Ships (PSAM-0234)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
Section XI Flaw Acceptance Criteria and Evaluation Using Code Procedures
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes