16. Study on Brittle Crack Propagation and Arrest Behavior in Plate and Beam Structures
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概要
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In this study, the characteristics of brittle crack propagation in mild steel were investigated, and the dynamic fracture toughness K_D of common hull steel was experimentally obtained as the material property in relation to the crack velocity and the temperature. Next, an attempt was made to forecast the crack propagation behavior in plates and beams structure. Using the double tension type large size specimen with the stiffener, the simplified procedure modifying the L.B. Freund's solution was experimentally verified to be useful to predict the brittle crack velocity fluctuations. The procedure is based on the theory of the stationary crack propagation, and is extended to the non-stationary crack. So when the boundary load makes no displacement or no additional work during the crack propagation, this method seems to be considerably promising.
- 社団法人日本船舶海洋工学会の論文
著者
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Yajima Hiroshi
Nagasaki Technical Institute Mitsubishi Heavy Industries Ltd.
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Machida Susumu
Department Of Naval Architecture And Ocean Engineering University Of Tokyo
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Yajima Hiroshi
Nagasaki Inst. Of Ap. Sc.
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KANAZAWA Takeshi
University of Tokyo
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KAQWANO Hajime
Nagasaki Technical Institute, Mitsubishi Heavy Industries, Ltd.
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Kaqwano Hajime
Nagasaki Technical Institute Mitsubishi Heavy Industries Ltd.
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YAJIMA Hiroshi
Nagasaki Technical Institute, Mitsubishi Heavy Industries, Ltd.
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MACHIDA Susumu
Department of Naval Architecture, University of Tokyo
関連論文
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- 16. Study on Brittle Crack Propagation and Arrest Behavior in Plate and Beam Structures
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- Modelling of Fast Crack Propagation and Arrest in Ship Steels
- 13. Effect of Notch Acuity on Critical COD
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- 13. Study on Brittle Crack Propagation and Arrest Behavior in Plate and Beam Structures (2nd Report) : Dynamic Fracture Toughness of Ship Hull Steels
- Experimental Study on Brittle Crack Propagation Behavior with Large Scale Structural Component Model Tests : Brittle Crack Arrest Design for Large Container Ships-5
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