Geometrical and Welding Conditions on Through-Thickness Residual Stress in Primary Piping of Girth Welded Joints

Jinya Katsuyama; Masahito Mochizuki; Hiroaki Mori; W. Asano; Gyu Baek An; Masao Toyoda

doi:10.4028/www.scientific.net/MSF.580-582.573

Paper Titles

Development of a Visual Monitoring System for Deformation Measuring of Welded Members and its Application
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Statistical Process Monitoring System for SMT Industry Using Automatic Optical Inspection System
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Robot Based Laser Welding Technology
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A Study on Operational Characteristics of SMA Wire Segmented by Thermoelectric Module
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Geometrical and Welding Conditions on Through-Thickness Residual Stress in Primary Piping of Girth Welded Joints
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Measurement of Through-Thickness Residual Stress in Primary Piping of Girth Welded Joint
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A Rate-Dependent Hysteresis Model for Structural Steel (SM490) Considering the Coupled Effect of Strain Rate Hardening and Temperature Rise
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Angular Distortion Reduction by In-Process Control Welding Using Back Heating Source
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Effect of Weld HAZ Softening on Tensile Strength of Welded Joint with Weld HAZ Softening
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HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Geometrical and Welding Conditions on...

Geometrical and Welding Conditions on Through-Thickness Residual Stress in Primary Piping of Girth Welded Joints

Abstract:

Recently, stress corrosion cracking (SCC) of primary piping of stainless steel has been observed. SCC is considered to initiate and progress at near the welding zone in butt-welded pipes, because of the tensile residual stress introduced by welding. In present work, three-dimensional and axisymmetric thermo-elastic-plastic finite element analyses have been carried out, in order to clarify the effect of geometrical and welding conditions on through-thickness residual stress. In particular, butt-welding joints of SUS316L pipes have been examined. The residual stress was simulated by three-dimensional and axisymmetric models and the results were compared and discussed in detail.