Load distribution analysis and experimental verification of TBM thread connection structure

DOI

10.2991/iwmecs-18.2018.79How to use a DOI?

Keywords

TBM, thread, connection structure, load distribution.

Abstract

In order to analyze the fracture of bolts at the flange of TBM cutterhead, the load distribution of the thread in the standard thread connection structure was studied. Based on theoretical analysis and Finite element simulation analysis, starting from the connection structure of bolt, the load distribution of a thread connection structure under axial load was studied, and the maximum stress at the root of each whorl was obtained by Abaqus simulation. Finally, the fatigue test of double threaded studs with standard thread connection structure was carried out. The load distribution law of each circle screw thread was verified through a set of stud fatigue fracture position. Found that the bolt fracture problem was not due to the excessive load on the flange, but due to the nouniform distribution of the axial force of the thread.

Copyright

© 2018, 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  - Xiaodong Nie
AU  - Ailian Hu
AU  - Junzhou Huo
AU  - Jinchi Guo
PY  - 2018/04
DA  - 2018/04
TI  - Load distribution analysis and experimental verification of TBM thread connection structure
BT  - Proceedings of the 2018 3rd International Workshop on Materials Engineering and Computer Sciences (IWMECS 2018)
PB  - Atlantis Press
SP  - 367
EP  - 375
SN  - 2352-538X
UR  - https://doi.org/10.2991/iwmecs-18.2018.79
DO  - 10.2991/iwmecs-18.2018.79
ID  - Nie2018/04
ER  -