Ultrasonic inspection of multiple-rivet-hole lap joint cracks using global analysis with local finite element approach

Yeasin Bhuiyan; Yanfeng Shen; Victor Giurgiutiu

doi:10.1117/12.2235645

1 April 2016 Ultrasonic inspection of multiple-rivet-hole lap joint cracks using global analysis with local finite element approach

Yeasin Bhuiyan, Yanfeng Shen, Victor Giurgiutiu

Author Affiliations +

Proceedings Volume 9805, Health Monitoring of Structural and Biological Systems 2016; 98051Z (2016) https://doi.org/10.1117/12.2235645
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

Ultrasonic inspection of multiple-rivet-hole lap joint cracks has been introduced using combined analytical and finite element approach (CAFA). Finite element analyses have been performed on local damage area in spite of the whole large structure and transfer function based analytical model is used to analyze the full structure. “Scattered cube” of complex valued wave damage interaction coefficient (WDIC) that involves scattering and mode conversion of Lamb waves around the damage is used as coupling between analytical and FEM simulation. WDIC is captured for multiple angles of incident Lamb mode (S0 and A0) over the frequency domain to analyze the cracks of multiple-rivet-hole lap joint. By analyzing the scattered cube of WDICs over the frequency domain and azimuthal angles the optimum parameters can be determined for each angle of incidence and the most sensitive signals are obtained using WaveformRevealer2D (WFR2D). These sensitive signals confirm the detection of the butterfly cracks in rivet holes through the installment of the transmitting and sensing PWASs in the proper locations and selecting the right frequency of excitation.

Conference Presentation

Citation Download Citation

Yeasin Bhuiyan, Yanfeng Shen, and Victor Giurgiutiu "Ultrasonic inspection of multiple-rivet-hole lap joint cracks using global analysis with local finite element approach", Proc. SPIE 9805, Health Monitoring of Structural and Biological Systems 2016, 98051Z (1 April 2016); https://doi.org/10.1117/12.2235645

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