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Study on Fracture Toughness of welded joints for heavy-thick steel plates by Centre-Notched small size specimen

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Abstract

A centre-notched small size tension test specimen was developed to evaluate the toughness against unstable brittle fracture from fatigue crack, which is initiated and propagated from the surface of the butt-welded joints Qof heavy-thick steel plates. Centre-notched small size tension test specimens were made from butt-welded joints of 70 mm heavy-thick steel plates and employed for the tests using this plate thickness as the specimen width. In this paper, the test results are evaluated and investigated.

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References

  1. Committee on Fracture Mechanics, The Society of Materials Science, Japan: Stress Intensity Factors Handbook, Volume 1, Pergamon Press, 1987, p. 3.

  2. Newman J.C.Jr. and Raju I.S.: Analysis of surface cracks in finite plates under tension or bending loads, NASA Technical Paper 1578, 1979.

  3. Yajima H., Watanabe E., Jia Z.M., Yoshimoto K., Ishikawa T., Funatsu Y.: Study on fracture toughness evaluation by centre-notched small size specimen for heavy-thick steel plates, Doc. IIW-2100, Weld ing in the World, 2011, vol. 55, no. 5/6, pp. 78–83.

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Authors and Affiliations

  1. Graduate School of Engineering, Nagasaki Institute of Applied Science, Nagasaki, Japan

    Hiroshi Yajima,  Eiichi Watanabe (Professor),  Zi Meng Jia (Professor) &  Kousuke Yoshimoto

  2. Technical Development Bureau, Nippon Steel Corporation, Chiba, Japan

    Tadashi Ishikawa Ph.D.

  3. Plate Technical Department, Plate Sales Division, Nippon Steel Corporation, Tokyo, Japan

    Yuuji Funatsu

Authors
  1. Hiroshi Yajima
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  2. Eiichi Watanabe
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  3. Zi Meng Jia
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  4. Kousuke Yoshimoto
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  5. Tadashi Ishikawa Ph.D.
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  6. Yuuji Funatsu
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Corresponding author

Correspondence to Hiroshi Yajima.

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Yajima, H., Watanabe, E., Jia, Z.M. et al. Study on Fracture Toughness of welded joints for heavy-thick steel plates by Centre-Notched small size specimen. Weld World 55, 84–92 (2011). https://doi.org/10.1007/BF03321298

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  • DOI: https://doi.org/10.1007/BF03321298

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