Rapid damage reconstruction imaging of composite plates using non-contact air-coupled Lamb waves

Luo，Kai1,2,3; Liu，Yujia1; Liang，Wei1; Chen，Liang1; Yang，Zhibo4

2024-04-01

10.1016/j.ndteint.2024.103047

NDT and E International   影响因子和分区

0963-8695

Air-coupled ultrasonic Lamb wave damage imaging is a method for rapid, non-contact damage detection of plate specimens. However, the current technique based on Lamb waves has limitations regarding accuracy and quality of imaging. To address this issue, an improved bilateral boundary-enhanced reconstruction algorithm for the probabilistic inspection of defects (BBERAPID) is proposed. This algorithm optimizes the probability distribution near the damage boundary to enhance the accuracy of damage imaging. The skewed bilateral boundary distribution algorithm can improve the probability distribution of edges on both sides of the damage and alleviate the problem of abnormal boundary expansion. In addition, a new damage index (DI) calculation method is proposed to accelerate the DI trend near the damage. The new DI can improve the fineness of the damage boundary, thus better distinguish the healthy area from the damage area. Traditional DI has the problem of abnormal distribution at the damage boundary, which BBERAPID solves. The probability distribution near the damage is optimized to improve the quality and accuracy of damage imaging. Experimental studies are performed using composite plates to validate the proposed method further. The effectiveness and accuracy of the proposed BBERAPID algorithm for detecting damages in composite plates are verified by comparing it with existing imaging methods through experimental validation. The proposed non-contact air-coupled Lamb wave damage imaging method is suitable for rapidly and accurately characterizing defects in composite plates.

Air-coupled ultrasonics Composite plate Damage detection Damage imaging Damage reconstruction Lamb wave Non-contact

SCI ; EI

英语

其他

MATERIALS SCIENCE

2-s2.0-85182283574

Scopus

1.School of Mechanical and Electrical Engineering,University of Electronic Science and Technology of China,Chengdu,611731,China
2.Shenzhen Key Laboratory of Intelligent Manufacturing for Continuous Carbon Fibre Reinforced Composites,Southern University of Science and Technology,Shenzhen,518055,China
3.School of System Design and Intelligent Manufacturing (SDIM),Southern University of Science and Technology,Shenzhen,518055,China
4.School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an,710049,China

Luo，Kai,Liu，Yujia,Liang，Wei,et al. Rapid damage reconstruction imaging of composite plates using non-contact air-coupled Lamb waves[J]. NDT and E International,2024,143.

Luo，Kai,Liu，Yujia,Liang，Wei,Chen，Liang,&Yang，Zhibo.(2024).Rapid damage reconstruction imaging of composite plates using non-contact air-coupled Lamb waves.NDT and E International,143.

Luo，Kai,et al."Rapid damage reconstruction imaging of composite plates using non-contact air-coupled Lamb waves".NDT and E International 143(2024).