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

Volume

5

fYear

1996

fDate

7-10 May 1996

Firstpage

2738

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.550119

Filename

550119