FATIGUE CRACK GROWTH MONITORING OF AN ALUMINUM JOINT STRUCTURE | Zendy

Cliff J. Lissenden | Zendy; H. Cho | Zendy; C. S. Kim | Zendy; Donald O. Thompson | Zendy; Dale E. Chimenti | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

FATIGUE CRACK GROWTH MONITORING OF AN ALUMINUM JOINT STRUCTURE

Author(s) -

Cliff J. Lissenden,

H. Cho,

C. S. Kim,

Donald O. Thompson,

Dale E. Chimenti

Publication year - 2010

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3362323

Subject(s) - fastener , joint (building) , materials science , aluminium , piezoelectricity , structural engineering , paris' law , signal (programming language) , transducer , amplitude , sizing , acoustics , ultrasonic sensor , crack closure , fracture mechanics , composite material , engineering , computer science , optics , metallurgy , physics , programming language , art , visual arts

The detection, location, and sizing of a fatigue crack emanating from a fastener hole in an aluminum plate is investigated. Two linear arrays of surface mounted piezoelectric disk transducers send and receive ultrasonic guided waves that are transmitted, reflected, and scattered by both the joint geometry and the fatigue crack. A tomography algorithm is used to detect and locate the crack. Amplitude ratio and signal difference coefficients are explored as candidate features to size the crack, which is necessary for reliability and remaining life calculations. Both of these features are quite sensitive to fatigue crack lengths as small as 0.13 of the hole diameter.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research