Damage detection and localization in plate-like structures using sideband peak count (SPC) technique

Bo Hu; Tribikram Kundu

doi:10.1016/j.ultras.2024.107485

Damage detection and localization in plate-like structures using sideband peak count (SPC) technique

Ultrasonics. 2024 Oct 5:145:107485. doi: 10.1016/j.ultras.2024.107485. Online ahead of print.

Authors

Bo Hu¹, Tribikram Kundu²

Affiliations

¹ Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721, USA; Department of Civil and Architectural Engineering and Mechanics, University of Arizona, Tucson, AZ 85721, USA.
² Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721, USA; Department of Civil and Architectural Engineering and Mechanics, University of Arizona, Tucson, AZ 85721, USA; Materials Science and Engineering Department, University of Arizona, Tucson, AZ 85721, USA. Electronic address: tkundu@arizona.edu.

PMID: 39388988
DOI: 10.1016/j.ultras.2024.107485

Abstract

This paper addresses the critical issue of detecting and localizing damage in plate-like structures, which are commonly encountered in aerospace, marine and other engineering applications. To address this challenge, the current study introduces the sideband peak count (SPC) technique as the foundation for diagnostic imaging for damage detection in plate structures. The proposed damage detection algorithm requires only a limited number of sensor responses, streamlining the detection process. It does not rely on a reference baseline, thereby enhancing its efficiency and accuracy. This approach enables rapid and precise identification of damage and its location within the plate structure. To validate the effectiveness and applicability of the proposed method, finite element simulation results are utilized. These results demonstrate the capability of the proposed technique to accurately detect and localize damage, providing a promising solution for enhancing the structural health monitoring of plate-like structures in various engineering domains.

Keywords: Damage detection & localization; Elastic wave propagation; Finite element modeling; Sideband peak count-index (SPC-I); Structural health monitoring.