Title :
Detection and characterization of cracks for failure monitoring and diagnostics
Author :
Buckley, K. ; Venkatesan, G. ; West, D. ; Kaveh, M.
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
An early indicator of the onset of material failure due to fatigue and/or stress is the appearance of microcracks. The generation of these cracks creates propagating acoustic signals in the material, termed acoustic emissions (AEs). This paper presents results from an ongoing investigation into the detection end characterization of microcracks using AE signals measured in the presence of strong correlated interference and white noise
Keywords :
acoustic correlation; acoustic emission testing; acoustic signal processing; acoustic variables measurement; acoustic wave propagation; crack detection; failure analysis; fatigue cracks; interference (signal); microcracks; monitoring; white noise; acoustic emission signals; acoustic signal processing; acoustic signal propagation; correlated interference; crack characterization; crack detection; crack generation; failure diagnostics; failure monitoring; fatigue; material failure; microcracks; stress; white noise; Acoustic emission; Acoustic materials; Acoustic measurements; Acoustic propagation; Acoustic signal detection; Condition monitoring; Fatigue; Noise measurement; Signal generators; Stress;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3192-3
DOI :
10.1109/ICASSP.1996.550119
