[1] [1] HAYASHI T, KAWASHIMA K. Multiple reflections of lamb waves at a delamination[J]. Ultrasonics, 2002, 40(1/8): 193-197.

[2] [2] PUDIPEDDI G T, NG C T, KOTOUSOV A. Mode conversion and scattering of lamb waves at delaminations in composite laminates[J]. Journal of Aerospace Engineering, 2019, 32(5): 04019067.

[3] [3] YEUM C M, SOHN H, LIM H J, et al. Reference-free delamination detection using Lamb waves[J]. Structural Control and Health Monitoring, 2014, 21(5): 675-684.

[4] [4] FENG Bo, RIBEIRO A L, RAMOS H G. A new method to detect delamination in composites using chirp-excited Lamb wave and wavelet analysis[J]. NDT & E International, 2018, 100: 64-73.

[6] [6] NANDYALA A R, DARPE A K, SINGH S P. Damage severity assessment in composite structures using multi-frequency Lamb waves[J]. Structural Health Monitoring, 2022, 21(6): 2834-2850.

[7] [7] RAMADAS C, BALASUBRAMANIAM K, JOSHI M, et al. Interaction of the primary anti-symmetric Lamb mode (A0) with symmetric delaminations: numerical and experimental studies[J]. Smart Material Structures, 2009, 18(8): 085011.

[8] [8] MICHAELS J E, LEE SANG jun, CROXFORD A J, et al. Chirp excitation of ultrasonic guided waves[J]. Ultrasonics, 2013, 53(1): 265-270.

[9] [9] SHEEN B, CHO Y. A study on quantitative lamb wave tomogram via modified RAPID algorithm with shape factor optimization[J]. International Journal of Precision Engineering and Manufacturing, 2012, 13(5): 671-677.

[10] [10] SU Zhongqing, YE Lin. Lamb wave-based quantitative identification of delamination in CF/EP composite structures using artificial neural algorithm[J]. Composite Structures, 2004, 66(1/4): 627-637.