Advanced Search  
JWJ > Volume 30(6); 2012 > Article
Journal of KWJS 2012 December;30(6) :120-125.
Published online December 23, 2012.
doi:https://doi.org/10.5781/KWJS.2012.30.6.120
A Study on the Thermal Distortion Analysis of Welded Structures having K/X Groove using shell elements
Yunsok Ha*, Jiwon Choi*
*Welding Research Part, Samsung Heavy Industries CO., LTD., Geoje 656-710, Korea
Correspondence: Jiwon Choi  Email: yunsok.ha@samsung.com
  Published online December 23, 2012
ABSTRACT
Because ships and offshore structures have very large dimensions and complicated shapes, it is difficult to determine the deformation or internal stress in the structure by simple lab tests. Thus, a rigorous analysis by using the computer simulation technology is essential for obtaining their distortions by considering the entire production process characteristics. The rapid development of computer technology made it possible to analyze the heat transfer phenomena, deformation and phase transformation in the welded joint. For large shell structures, shell elements modeling contributed primarily to this development. But if a welding is done by multi-pass, shell elements whose thickness are unchangeable can hard to describe the local situation. Recently, it was researched how to introduce the imaginary temperature for V grooved multi-layer butt welding in strain-boundary method (a kind of shrinkage methodologies). In the present study, we formulated the imaginary temperature for the double bevel and double V groove by considering the thickness change of each pass through the bead and the thickness directions simultaneously and also demonstrated the feasibility of the formula by applying it to the thermal distortion analysis of the erection process of crane pedestal.
Keywords: Thermal distortion | FEM | Multi-pass | Butt welding | Shell element | K groove | X groove
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
0
Crossref
1,353
View
9
Download
Related articles
A Study on the Welding Distortion Analysis According to Rib Height in Fillet Welding  2013 December;31(6)
A Study on Analyzing Thermal Strain of Weldment during Cooling used at Low MS Point Weld Consumables  2013 December;31(6)
A Study on the Crash Characteristics and Analysis of Spot+adhesive Welds in Automobile B-pillar Parts  2011 October;29(5)
A Study on Weldment Boundary Condition for Elasto-Plastic Thermal Distortion Analysis of Large Welded Structures  2011 August;29(4)
A Study on the Control Technology for Global Distortion of the Deck in the Superstructure during Manufacturing Process  2010 October;28(5)
A Study on the Welding Distortion Analysis According to Rib Height in Fillet Welding  2013 December;31(6)
A Study on Analyzing Thermal Strain of Weldment during Cooling used at Low MS Point Weld Consumables  2013 December;31(6)
A Study on the Crash Characteristics and Analysis of Spot+adhesive Welds in Automobile B-pillar Parts  2011 October;29(5)
A Study on Weldment Boundary Condition for Elasto-Plastic Thermal Distortion Analysis of Large Welded Structures  2011 August;29(4)
A Study on the Control Technology for Global Distortion of the Deck in the Superstructure during Manufacturing Process  2010 October;28(5)
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 https://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
#304, San-Jeong Building,
23, Gukhoe-daero 66-gil, Yeongdeungpo-gu, Seoul 07237, 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.           Developed in M2PI