A Probabilistic Approach to Evaluation of Fracture Toughness of Welds with Heterogeneity
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概要
- 論文の詳細を見る
Macroscopic heterogeneity existing inevitably in welds affects the scatter in fracture toughness values of welds, which is often observed in fracture toughness tests. By using the weld specimens which hove macroscopic heterogeneity in toughness along the crack front, the effect of a locally embrittled region on the scatter of fracture toughness of welds has been investigated. The scatter of fracture toughness of welds is mainly controlled by own toughness and by the size of the embrittled region along the crack front. A probabilistic model for evaluating the scatter of fracture toughness of welds is proposed newly on the basis of the weakest link model in which the effect of size of the embrittled region along the crack front is taken into account. It is experimentally confirmed that the present probabilistic model can be applicable to estimation of the scatter of fracture toughness of heterogeneous welds.
- 社団法人溶接学会の論文
- 1985-04-01
著者
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Toyoda M
Osaka Univ.
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SATOH Kunihiko
Department of Science, Hokkaido University of Education
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Satoh K
Department Of Welding & Production Engineering Faculty Of Engineering Osaka University
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Satoh Kunihiko
Department Of Welding Engineering Osaka University
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Toyoda Masao
Department Of Welding & Production Engineering Faculty Of Engineering Osaka University
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Toyoda Masao
Faculty Of Engineering Osaka University
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MINAMI Fumiyoshi
Department of Welding & Production Engineering, Faculty of Engineering, Osaka University
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Satoh K
Faculty Of Engineering Osaka University
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Toyoda Masao
Department Of Hematology Nephrology And Rheumatology Akita University Graduate School Of Medicine
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Minami Fumiyoshi
Department Of Welding & Production Engineering Faculty Of Engineering Osaka University
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Satoh Kunihiko
Department Of Science Hokkaido University Of Education
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Toyoda Masao
Department Of General And Gastroenterological Surgery Osaka Medical College
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SATOH KUNIHIKO
Department of Internal Medicine, School of Medicine, Keio University
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MINAMI Fumiyoshi
Department of Manufacturing Science, Osaka University
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