Finite Element Simulation of Welding of Large Components Based on Inherent Strain and Thermo Elastic Plasticity

DOI

10.2991/icadme-17.2017.5How to use a DOI?

Keywords

Inherent strain; thermo elastic plastic; welding deformation; stress

Abstract

Based on inherent strain theory, it predicts and optimizes welding deformation of movable arm by means of welding numerical simulation. At the same time, based on thermal elastic-plastic theory, it predicts stress distribution, and finite element model is verified correctly by experiments. The results show that maximum deformation occurs at the front ear plate, and maximum unilateral deformation is 1.95mm. Compared with experimental results, error is about 11%, which proves the accuracy of simulation results. The best welding sequence is 1, 5, 4, 2, 3. Maximum deformation of front ear plate is reduced by 0.47mm, and welding deformation is reduced by 24.1%. Maximum stress is located at the intersection of reinforcing plate and lower cover, and peak value is 289.4MPa. Simulation results are in good agreement with experimental results, and error is controlled within 11.96%, which verifies the validity of finite element model.

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  - Xuemei Zong
AU  - Can Wang
PY  - 2017/07
DA  - 2017/07
TI  - Finite Element Simulation of Welding of Large Components Based on Inherent Strain and Thermo Elastic Plasticity
BT  - Proceedings of the 2017 7th International Conference on Advanced Design and Manufacturing Engineering (ICADME 2017)
PB  - Atlantis Press
SP  - 20
EP  - 24
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-17.2017.5
DO  - 10.2991/icadme-17.2017.5
ID  - Fang2017/07
ER  -