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Influence of frequency and damage index estimation method on the probability of detection of fatigue cracks by a sparse array SHM system

Authors: Lucas Dorneles (Universidade Federal do Rio de Janeiro) , Henrique Oliveira (Universidade Federal do Rio de Janeiro) , Thomas Clarke (Universidade Federal do Rio de Janeiro) , Fernando Dotta (Embraer) , Leandro Coutinho (Embraer) , André Tamba (Embraer) , Ricardo Rulli (Embraer)

  • Influence of frequency and damage index estimation method on the probability of detection of fatigue cracks by a sparse array SHM system

    None

    Influence of frequency and damage index estimation method on the probability of detection of fatigue cracks by a sparse array SHM system

    Authors: , , , , , ,

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Abstract

In this paper the probability of detection of fatigue cracks in complex aeronautical aluminum panels by a guided wave structural health monitoring system is evaluated. The effects of operating frequency and sensor positioning relative to the defect were quantified, and showed a marked influence on the results. Different methods of calculation of a damage index and their corresponding thresholds were considered, and their effect on the sensitivity of the system to the defects was also evaluated.

How to Cite:

Dorneles, L., Oliveira, H., Clarke, T., Dotta, F., Coutinho, L., Tamba, A. & Rulli, R., (2019) “Influence of frequency and damage index estimation method on the probability of detection of fatigue cracks by a sparse array SHM system”, Review of Progress in Quantitative Nondestructive Evaluation .

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Published on
04 Dec 2019
Peer Reviewed
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