Three Dimensional Numerical Simulation of various Thermo-mechanical Processes by FEM (Report IV)

• UEDA Y.

  Osaka University

• WANG Jianhua

  Osaka University Shanghai Jiao Tong University

• MURAKAWA Hidekazu

  Osaka University

• YUAN Min Gang

  Osaka University Daikin Industries, Ltd.

抄録

Residual deformations and stresses of a pipe-plate joint with holes after multi-pass welding are analyzed. The numerical simulations are performed using the thermal-elastic-plastic Finite Element Method and three dimensional solid elements are used. The shrinkages of the joint and deformations of holes for bolts which locate around the pipe are analyzed using different geometrical models and welding conditions. The change of the shape and the location of the holes after the circular fillet welding between the pipe and the plate are analyzed. Half-circle joint model and full-circle joint model, instantaneous heat source and moving heat source, single-pass and multi-pass weldings are considered for comparison. The computed results provide a great deal of informations which are very useful for predicting the effects of various welding conditions on residual deformations and also useful for controlling the geometrical accuracy of the pipe-plate joint. The transient and the residual stresses due to the multi-pass welding are also analyzed.

収録刊行物

• Trans. JWRI

  Trans. JWRI 22 (2), 289-294, 1993

  大阪大学

キーワード

• Multi-pass Welding
• Pipe-Plate Joint
• Residual Deformation
• Residual Stress
• Finite Element Method
• Moving Heat Source

詳細情報

• CRID: 1574231877022601088
• NII論文ID: 110006487041
• NII書誌ID: AA00867058
• ISSN: 03874508
• 本文言語コード: en
• データソース種別:
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