Numerical Simulation on Welding Residual Stress and its Effects on Loading Behavior of Extended Arm Structure

Ang Ji, Minggang Chen, Liping Zhang, Binbin Zhang, Le Gao

Abstract

In this article, the numerical simulation method was utilized to investigate the welding deformation and residual stress of the extended arm structure. Then the distortion and stress distribution of extended arm structure under loading state were calculated with and without considering the welding residual stress(WRS). The results show that the welding residual stress around weld toe is very high and the maximum Von Mises stress in weld zone is up to 550MPa, which is more than 3 times higher than that of middle area. When welding situation is taken into consideration, the Von Mises stress around the weld area reaches the yield strength of base metal while the Von Mises stress apart from the weld area decreases on account of the offset by WRS. The welding deformation is the main part of the structural deformation in X and Z direction under welding&static situation and the deformation in Y direction is 38.28mm, which is the stack of welding deformation and down warping with static load.

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Paper Citation


in Harvard Style

Ji A., Chen M., Zhang L., Zhang B. and Gao L. (2018). Numerical Simulation on Welding Residual Stress and its Effects on Loading Behavior of Extended Arm Structure.In Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - Volume 1: ICIMM, ISBN 978-989-758-345-2, pages 125-131. DOI: 10.5220/0007527601250131


in Bibtex Style

@conference{icimm18,
author={Ang Ji and Minggang Chen and Liping Zhang and Binbin Zhang and Le Gao},
title={Numerical Simulation on Welding Residual Stress and its Effects on Loading Behavior of Extended Arm Structure},
booktitle={Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - Volume 1: ICIMM,},
year={2018},
pages={125-131},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007527601250131},
isbn={978-989-758-345-2},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - Volume 1: ICIMM,
TI - Numerical Simulation on Welding Residual Stress and its Effects on Loading Behavior of Extended Arm Structure
SN - 978-989-758-345-2
AU - Ji A.
AU - Chen M.
AU - Zhang L.
AU - Zhang B.
AU - Gao L.
PY - 2018
SP - 125
EP - 131
DO - 10.5220/0007527601250131