A Simplified Analysis of Residual Stress at Welded Joints between Plate and Penetrating Pipe

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概要

• 論文の詳細を見る

• We present a new and simplified method of estimating residual stress in welded structures by using inherent strain. The method makes use of elastic analysis by means of the finite element method, and can be used to calculate the welding residual stress in three-dimensional structures. The method can be used to efficiently compute the residual stress remaining in complex welded structures. The inherent strain distribution at a welded joint of a small-diameter pipe penetrating a thick plate can be assumed to be present in a simple distribution, and the residual stress can be calculated by elastic analysis. Inherent strain distributions were inferred from those of welded joints with simple shapes. The estimated residual stress distributions using these inferred inherent strains agree well with the results of strain-gauge measurements of a mock-up specimen. The proposed method in this paper can estimate welding residual stress in three-dimensional structures of complicated shapes in a simple way.

• 一般社団法人日本機械学会の論文
• 1997-01-15

著者

• Tada Nobuo

  Hitachi Works Hitachi Ltd.

• HAYASHI Makoto

  Mechanical Engineering Research Laboratory, Hitachi, Ltd.,

• Nakagawa M

  Nuclear System Division Nuclear Engineering And Product Division Hitachi Ltd.

• MOCHIZUKI Masahito

  Mechanical Engineering Research Laboratory, Hitachi, Ltd.

• NAKAGAWA Masaki

  Mechanical Engineering Research Laboratory, Hitachi, Ltd.

• SHIMIZU Sadato

  Hitachi Works, Hitachi, Ltd.

• Mochizuki M

  Osaka Univ. Osaka‐fu Jpn

• Shimizu S

  Hitachi Works Hitachi Ltd.

• Hayashi Makoto

  Mechanical Engineering Research Laboratory Hitachi Ltd.

• Hayashi Makoto

  Mechanical Engineering Research Laboratories Hitachi Ltd.

関連論文

• Comparison of Five Evaluation Methods of Residual Stress in a Welded Pipe Joint
• Residual Stress Distribution in Carbon Steel Pipe Welded Joint Measured by Neutron Diffraction
• A Simplified Analysis of Residual Stress at Welded Joints between Plate and Penetrating Pipe
• Dynamic Buckling Experiments on Liquid Containing Cantilever Cylindrical Shells under Horizontal Excitation
• Analysis of Stress Intensity Factor due to Surface Crack Propagation in Residual Stress Fields Caused by Welding : Comparison of Influence Function Method and Inherent Strain Analysis(Fracture Mechanics)
• Neutron Diffraction Measurements of Residual Stresses in Engineering Materials and Components(Materials Evaluation by X-ray and Neutron Diffractions)
• Dynamic Buckling and Nonlinear Response of Fast Breeder Reactor Main Vessels under Earthquake Loading
• Effect of Vertical Seismic Load on Shear-Bending Buckling Strength of Thin Cylindrical Shells

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