Lamb wave damage imaging method based on multimodal dispersion compensation and compressive sensing

Chen, Y, Liu, W, Zhang, G, Su, X, Ma, H, Wan, X and Dong, M (2026) Lamb wave damage imaging method based on multimodal dispersion compensation and compressive sensing. Nondestructive Testing and Evaluation. ISSN 1058-9759

Preview

Text Lamb wave damage imaging method based on multimodal dispersion compensation and compressive sensing.pdf - Accepted Version Available under License Creative Commons Attribution. Download (2MB) | Preview

Abstract

To address the challenges of wave packet broadening and signal distortion caused by multimodality and dispersion effects in Lamb wave-based damage detection for carbon fibre-reinforced polymer (CFRP) laminates, this paper proposes an imaging method that combines multimodal dispersion compensation and compressive sensing (CS). First, the Rayleigh-Lamb equation is solved using the T300/5028 material parameters to establish the dispersion characteristic model. A baseline-free multimodal dispersion compensation technique is developed for performing frequency-domain phase correction and time-domain signal reconstruction, allowing accurate estimation of the compensation distance between each sensor and the damage. Subsequently, a CS-based imaging algorithm that fuses delay-and-sum (DAS) and sparse reconstruction is proposed and verified using finite‑element simulations and experimental tests. The results show maximum localisation errors of 2.03 ± 0.05 mm in simulations and 2.31 ± 0.56 mm in experiments. This work provides theoretical insights and experimental support for the high-precise identification of delamination damage in anisotropic composite materials.

Item Type:	Article
Uncontrolled Keywords:	Multimodal dispersion compensation; phase compensation; compressive sensing; high-precision detection; lamb wave imaging; 4006 Communications Engineering; 40 Engineering; 4016 Materials Engineering; 0912 Materials Engineering; 0913 Mechanical Engineering; Acoustics; 4016 Materials engineering
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Engineering
Publisher:	Taylor & Francis Group
Date of acceptance:	24 March 2026
Date of first compliant Open Access:	30 May 2026
Date Deposited:	29 May 2026 12:36
Last Modified:	30 May 2026 00:50
DOI or ID number:	10.1080/10589759.2026.2652535
URI:	https://researchonline.ljmu.ac.uk/id/eprint/28679

View Item