Study on the Influence of Tack Welding on Residual Stress of Overlap Joint

DOI

10.2991/iceep-17.2017.134How to use a DOI?

Keywords

Tack welding; overlap joint; residual stress; finite element method

Abstract

Taking overlap joint as the object, it simulates welding process. And it obtains residual stress and distribution curves. By simulating the equivalent form of tack welding, it discusses the influence of tack welding by XYZ displacement constraint, X displacement constraint, node matching and adhesive contact on stress distribution. It verifies the results. The results show that four sets of tack welding are designed, and it calculates stress distributions. By XYZ displacement constraint, X displacement constraint and node matching, the simulation results is not consistent with the classical longitudinal stress distribution. By adhesive contact, the stress distribution is consistent with the test results, and error is controlled within 12.9%. It verifies the equivalent form of tack welding. Without considering tack welding, error is 40.3% at the distance from arc building of 50 mm. It does not meet the application requirements. It suggests that tack welding influence on the welding residual stress should be considered in the small model, and it simulates tack welding by adhesive contact.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yuanbin Fang
AU  - Liancheng Li
AU  - Xianfei Meng
AU  - Jinbo Lv
AU  - Jun Shi
PY  - 2017/06
DA  - 2017/06
TI  - Study on the Influence of Tack Welding on Residual Stress of Overlap Joint
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 769
EP  - 773
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.134
DO  - 10.2991/iceep-17.2017.134
ID  - Fang2017/06
ER  -