Experimental study of Rayleigh wave detection of structural damage on manned submersibles

Zhongjun Ding; Zhiliang Feng; Hongyu Li; Dejian Meng; Yi Zhang; Dewei Li

doi:10.1117/12.2688740

18 July 2023 Experimental study of Rayleigh wave detection of structural damage on manned submersibles

Zhongjun Ding, Zhiliang Feng, Hongyu Li, Dejian Meng, Yi Zhang, Dewei Li

Proceedings Volume 12744, Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023); 1274406 (2023) https://doi.org/10.1117/12.2688740
Event: Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023), 2023, Nanjing, China

Abstract

This paper describes the fabrication method of a PVDF interdigital transducer (PVDF-IDT) suitable for the underwater environments and conducts experiments on the detection of structural defects of underwater structures based on the IDT Rayleigh wave technology. The micro-sized and soft material property of PVDF-IDT has the characteristic of being permanently adhered to the surface of the inspected structure and shows great potential for the construction of lightweight structural health monitoring systems. Therefore, this paper has carried out the Rayleigh wave-structure damage experiment to obtain the empirical formula of surface wave and structural damage, and the empirical formula shows that the surface wave can achieve sub-millimeter precision detection of structural damage.

Citation Download Citation

Zhongjun Ding, Zhiliang Feng, Hongyu Li, Dejian Meng, Yi Zhang, and Dewei Li "Experimental study of Rayleigh wave detection of structural damage on manned submersibles", Proc. SPIE 12744, Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023), 1274406 (18 July 2023); https://doi.org/10.1117/12.2688740

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