Acoustic emission detection for composite damage assessment using embedded ordinary single-mode fiber optic interferometric sensors

Kexing Liu; Suzanne M. Ferguson; Keith McEwen; Edward Tapanes; Raymond M. Measures

doi:10.1117/12.24861

1 December 1990 Acoustic emission detection for composite damage assessment using embedded ordinary single-mode fiber optic interferometric sensors

Kexing Liu, Suzanne M. Ferguson, Keith McEwen, Edward Tapanes, Raymond M. Measures

Author Affiliations +

Proceedings Volume 1370, Fiber Optic Smart Structures and Skins III; (1990) https://doi.org/10.1117/12.24861
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

Abstract

An interferometric fiber optic sensor using ordinary single-mode fibers is developed to detect acoustic emission (AE) for damage assessment of composite materials. This fiber sensor has been embedded in both graphite/epoxy and Kevlar/epoxy composite specimens and used to produce the fast direct correlation of acoustic emission with their concomitant forms of damage, such as matrix crack or material fiber rupture. Applications of the sensor for assessment of damage due to impact and out-of-plane loading are presented. Limitations of the sensor are also discussed.

Citation Download Citation

Kexing Liu, Suzanne M. Ferguson, Keith McEwen, Edward Tapanes, and Raymond M. Measures "Acoustic emission detection for composite damage assessment using embedded ordinary single-mode fiber optic interferometric sensors", Proc. SPIE 1370, Fiber Optic Smart Structures and Skins III, (1 December 1990); https://doi.org/10.1117/12.24861

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