Open AccessEffect of groove defect State on propagation of SH0 guided wave in flat steel of grounding network
Author(s) -
HE Ke-long,
Zhou-quan Zhang,
Zhuan Liu,
HaiLiang Zhu,
Guo-da Peng,
Zhan Tu
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/310/3/032019
Subject(s) - groove (engineering) , reflection (computer programming) , sensitivity (control systems) , acoustics , signal (programming language) , materials science , optics , engineering , electronic engineering , physics , computer science , metallurgy , programming language
By studying the depth and length of groove defect, this paper explores its effect on the propagation of SH0 wave in the flat steel of substation grounding network. The results show that the sensitivity of SH0 wave to defect detection in the propagation process depends on the depth of defect, that is, the corrosion cross-sectional area. Reflection waves are difficult to detect when the defect cross-sectional area is less than 18.75%. The smaller the defect depth, the weaker the echo signal.