Comparison of Five Evaluation Methods of Residual Stress in a Welded Pipe Joint
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概要
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Residual stress distributions in a 4-inch-diameter carbon-steel pipe butt-welded joint were evaluated using five methods. The analytical evaluation methods used were inherent strain analysis and thermal elastic-plastic analysis. The experimental methods were X-ray diffraction and strain-gauge measurement for the surface residual stress and as well as neutron diffraction for the internal stress. The residual stress distributions determined using these methods agreed well with each other, both for surface stress and internal stress. The characteristics of the evaluation methods were summarized, and it was found that the most suitable method for any particular situation can be selected depending on the purpose by considering the evaluated location and the operating conditions of the object to be evaluated.
- 1999-01-15
著者
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MOCHIZUKI Masahito
Department of Physics, University of Tokyo
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HAYASHI Makoto
Mechanical Engineering Research Laboratory, Hitachi, Ltd.,
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Hattori Toshio
Mechanical Engineering Research Laboratory Hitachi Ltd.
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Mochizuki Masahito
Department Of Manufacturing Science Graduate School Of Engineering Osaka University : Mechanical Eng
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Mochizuki Masahito
Department Of Manufacturing Science Graduate School Of Engineering Osaka University
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Hayashi Makoto
Mechanical Engineering Research Laboratories Hitachi Ltd.
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Mochizuki Masahito
Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
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