Study on the Influence of Weld Defects on Structural Vibration Responses

DOI

10.2991/jiaet-18.2018.24How to use a DOI?

Keywords

welding defects; cross correlation function amplitude vector (CorV); numeric simulation; vibration response

Abstract

In this article we study the influence of weld defects on vibrating responses using a simplified numerical model--flat butt plate with a type-I welded joint. To analyze the changes in vibrating responses influenced by weld defects, a method based on cross correlation function amplitude vector (CorV) is adopted. The relative change of CorV is selected as a criterion for discriminating defects. The numeric results show that both single and multiple defects have a great influence on the criterion and also verify that the potential of the CorV based on acceleration responses for detecting and locating welding defects. We simulate the severity of defects by 10-80% reductions in modulus of elasticity, and make the conclusion that the relative change in CorV increases as the reduction occurs.

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  - Lizong Lin
AU  - Chengxiao Yang
PY  - 2018/03
DA  - 2018/03
TI  - Study on the Influence of Weld Defects on Structural Vibration Responses
BT  - Proceedings of the 2018 Joint International Advanced Engineering and Technology Research Conference (JIAET 2018)
PB  - Atlantis Press
SP  - 139
EP  - 145
SN  - 2352-5401
UR  - https://doi.org/10.2991/jiaet-18.2018.24
DO  - 10.2991/jiaet-18.2018.24
ID  - Lin2018/03
ER  -