Advanced Search  
JWJ > Volume 28(1); 2010 > Article
Journal of KWJS 2010 February;28(1) :54-59.
Published online March 10, 2010.
Development of Distortion Analysis Method for Multi-pass Butt-welding Based on Shell Element
Yunsok Ha, Jinhyuk Yang

Correspondence:   Published online March 10, 2010
ABSTRACT
  Ship Blocks are assembled by welding, and among them, welding between large blocks (Pre-erection stage) is used as feature of butt. In this process, local material has a experience of thermal cycle and become finally shrunk. As for inconsistency of shrunk weldments and adjacent regions, ship structure would be deformed locally and globally. Thermal distortion analyses are done for control of these processes, and methodologies capable of ship block size among them are using 2-D shell element in FEM. A shell element takes charge of plate, so it has its thickness which is important for angular distortion by welding. By the way, a butt-welding consists normally of several passes, and weldment thickness are  different at each pass. If a calculated final one-time welding shrinkage is acting on the shell element whose thickness is same as it of plate, then deformation value must be underestimated. This research developed a methodology that total deformation after multi-pass welding can be analyzed by one time at s ell element having original thickness of its plate. We use the SDB thermal distortion analysis method and verified by several experiment. The both experimental and analysis results showed good agreements.
Keywords: Ship block;Thermal distortion;FEM;Mutlti-pass;Butt welding;Shell element;Plate thickness;SDB;Angular distortion
TOOLS
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
CrossRef TDM  CrossRef TDM
  E-Mail
Share:      
METRICS
941
View
0
Download
Related articles
Development of Quality Inspection System for Fillet Welding Based on Laser Vision Sensor  2018 December;36(6)
Development of a Multi-pass Welding Device for Thick Panel on Gloove  2008 October;26(5)
Development of Thermal Distortion Analysis Method Based on Inherent Strain for TMCP Steels  2008 June;26(3)
Development of Welding Distortion Control Method for Thin Panel Block Structure(I)  2003 August;21(4)
Development of an Algorithm for Controlling Welding Bead Using Infrared Thermography   2000 December;18(6)
Development of Quality Inspection System for Fillet Welding Based on Laser Vision Sensor  2018 December;36(6)
Development of a Multi-pass Welding Device for Thick Panel on Gloove  2008 October;26(5)
Development of Thermal Distortion Analysis Method Based on Inherent Strain for TMCP Steels  2008 June;26(3)
Development of Welding Distortion Control Method for Thin Panel Block Structure(I)  2003 August;21(4)
Development of an Algorithm for Controlling Welding Bead Using Infrared Thermography   2000 December;18(6)
e-sciencecentral
Register for e-submission
Register here to access the e-submission system of Journal of KWJS for authors and reviewers.
Manuscript Submission
To submit a manuscript, please visit the Journal of KWJS e-submission management system at http://submit.e-jwj.org, read the Instructions for Authors, and log into the Journal of KWJS e-submission system. For assistance with manuscript submission, please contact: koweld@kwjs.or.kr.
Free archive
Anyone may access any past or current articles without logging in.
Editorial Office
The Korea Science and Technology Building, New B/D, Room 503
Teheran-ro 7-gil, 22(635-4, Yeoksam-Dong), Gangnam-gu, Seoul 06130, Korea
TEL : +82-2-538-6511    FAX : +82-2-538-6510   E-mail: koweld@kwjs.or.kr
Browse Articles |  Current Issue |  For Authors and Reviewers |  About
Copyright© by The Korean Welding and Joining Society. All right reserved.