Coda wave interferometry-based very early stage bolt looseness monitoring using a single piezoceramic transducer

• Published in: Smart materials and structures Vol. 31; no. 3; pp. 35030 - 35042
• Main Authors: Chen, Dongdong, Shen, Zhouhui, Fu, Ruili, Yuan, Bo, Huo, Linsheng
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.03.2022
• Subjects: bolt connection; bolt preload monitoring; coda wave interferometry; high resolution; PZT

The traditional monitoring methods can only give warnings for the bolts with severe looseness. However, it is essential for the safety of bolted joints to detect the looseness of bolts at the very early stage. To this end, in this paper, coda wave interferometry (CWI)-based high-resolution bolt prel...