Welding Residual Stress Characteristics of Bolt-welding Joint in TBM Split Cutterhead

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/).

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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  -