Welding Residual Stress Characteristics of Bolt-welding Joint in TBM Split Cutterhead
Authors
Shuli Zhang, Jianfu Zhang, Zhong Guo, Peng Gao, Tianyu Du
Corresponding Author
Jianfu Zhang
Available Online March 2019.
- DOI
- 10.2991/ice2me-19.2019.24How to use a DOI?
- Keywords
- TBM split cutterhead; bolt-welding joint; welding residual stress
- Abstract
The welding seam of the split cutterhead of tunnel boring(TBM) machine is easy to generate cracks in the working process, which affects the construction process and increases the cost. The double box structure is extracted from TBM cutterhead. The effects of high-strength bolts and welding speeds on the bolt-welding connection were investigated by finite element method. The results show that the area near the weld is subjected to residual tensile stress and the area far from the weld is subjected to residual compressive stress. The distribution of welding residual stress was strongly affected by welding speeds and high-strength bolts.
- Copyright
- © 2019, 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/).
Cite this article
TY - CONF AU - Shuli Zhang AU - Jianfu Zhang AU - Zhong Guo AU - Peng Gao AU - Tianyu Du PY - 2019/03 DA - 2019/03 TI - Welding Residual Stress Characteristics of Bolt-welding Joint in TBM Split Cutterhead BT - Proceedings of the 2019 International Conference on Electronical, Mechanical and Materials Engineering (ICE2ME 2019) PB - Atlantis Press SP - 110 EP - 113 SN - 2352-5401 UR - https://doi.org/10.2991/ice2me-19.2019.24 DO - 10.2991/ice2me-19.2019.24 ID - Zhang2019/03 ER -