![](/images/graphics-bg.png)
The Effect of Welding-Pass Grouping on the Prediction Accuracy of Residual Stress in Multipass Butt Welding
Joint Authors
Park, Jeongung
An, Gyubaek
Kim, Sunghoon
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The residual stress analysis of a thick welded structure requires a lot of time and computer memory, which are different from those in thin welded structure analysis.
This study investigated the effect of residual stress due to welding-pass grouping as a way to reduce the analysis time in multipass thick butt welding joint.
For this purpose, the parametric analysis which changes the number of grouping passes was conducted in the multipass butt weld of a structure with a thickness of 25 mm and 70 mm.
In addition, the residual stress by thermal elastoplastic FE analysis is compared with the results by the neutron diffraction method for verifying the reliability of the FE analysis.
The welding sequence is considered in order to predict the residual stress more accurately when using welding-pass grouping method.
The results of the welding-pass grouping model and half model occurred between the results of the left/right of the full model.
If the total number of welding-pass grouping is less than half of that of welding pass, a large difference with real residual stress is found.
Therefore, the total number of the welding-pass grouping should not be reduced to more than half.
American Psychological Association (APA)
Park, Jeongung& An, Gyubaek& Kim, Sunghoon. 2017. The Effect of Welding-Pass Grouping on the Prediction Accuracy of Residual Stress in Multipass Butt Welding. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1191871
Modern Language Association (MLA)
Park, Jeongung…[et al.]. The Effect of Welding-Pass Grouping on the Prediction Accuracy of Residual Stress in Multipass Butt Welding. Mathematical Problems in Engineering No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1191871
American Medical Association (AMA)
Park, Jeongung& An, Gyubaek& Kim, Sunghoon. The Effect of Welding-Pass Grouping on the Prediction Accuracy of Residual Stress in Multipass Butt Welding. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1191871
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1191871