Session: 05-01: Guided Waves I

Paper Number: 147631

147631 - Tunable Control of Guided Waves for Structural Health Monitoring via Elastic Metamaterials 

Abstract: 

Ultrasonic guided waves have been widely investigated as a class of powerful tool for Nondestructive Evaluation (NDE) and Structural Health Monitoring (SHM). The important key towards a highly sensitive structural sensing system resides in whether it can take full advantage of the favorable features of the interrogative wave field. Elastic metamaterials have gained increasing attention due to their capability of controlling and manipulating structural waves and vibrations. This presentation addresses the recent research progress carried out at the Active Materials and Intelligent Structures (AMIS) Lab of Shanghai Jiao Tong University on controlling and manipulating guided waves for enhanced SHM/NDE performance via elastic metamaterials. In particular, the concept of engaging elastic metamaterials for inspection wave field control is put forward. Four different wave manipulation case studies will be demonstrated: frequency component filtering for nonlinear ultrasonic inspection, selective wave mode transmission for tunable single mode sensing, complete mode conversion for Lamb and shear horizontal interrogation mode switching, as well as tunable wave control forming a guided wave radar for directional wave interrogation. Numerical modeling and experimental results will be presented and discussed. The results showed that the control and manipulation of guided waves possess great potential for enhancing SHM and NDE performance. The presentation finishes with summary, concluding remarks, and outlook for future work.

Presenting Author: Yanfeng Shen Shanghai Jiao Tong University

Presenting Author Biography: Dr. Yanfeng Shen is an Associate Professor and Associate Dean for Research at the University of Michigan–Shanghai Jiao Tong University Joint Institute, affiliated with Shanghai Jiao Tong University. He received his Bachelor’s degree in engineering mechanics from Wuhan University in 2010 and his Ph.D. degree in mechanical engineering from the University of South Carolina in 2014. Thereafter, he worked as a Postdoctoral Research Fellow in the Department of Aerospace Engineering at the University of Michigan till 2016. Dr. Shen has published over 90 papers in journals and international conference proceedings. He is currently an Associate Editor for Structural Health Monitoring – An International Journal and ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems. He is also an editorial member of Ultrasonics. He is serving as a syndic for Equipment Structural Health Monitoring and Prognostics Society of China. He is also an executive committee member of Nondestructive Diagnostics and Prognostics Division (NDPD) of American Society of Mechanical Engineers (ASME). In 2017, he received the best paper award from ASME IMECE conference. In 2018, his was acknowledged with the best paper award from the 4th ICSHMIM conference. Due to his outstanding contribution to the advancement of structural health monitoring, he received the Achenbach Medal from the international structural health monitoring community in 2020. In 2021, he was selected into the Shanghai Rising-star program. In 2023, He received the “highest citation” journal paper award from ASME Journal of NDE.

Authors:

Yanfeng Shen Shanghai Jiao Tong University