Title

Saw Sensor For Fastener Failure Detection

Abstract

The proof of concept for using surface acoustic wave (SAW) strain sensors in the detection of aircraft fastener failures is demonstrated. SAW sensors were investigated because they have the potential for the development of passive wireless systems. The SAW devices employed four orthogonal frequency coding (OFC) spread spectrum reflectors in two banks on a high temperature piezoelectric substrate. Three SAW devices were attached to a cantilever panel with removable side stiffeners. Damage in the form of fastener failure was simulated by removal of bolts from the side stiffeners. During testing, three different force conditions were used to simulate static aircraft structural response under loads. The design of the sensor, the panel arrangement and the panel testing results are reported. The results show that the sensors successfully detected single fastener failure at distances up to 54.6 cm from the failure site under loaded conditions. ©2010 IEEE.

Publication Date

12-1-2010

Publication Title

Proceedings of IEEE Sensors

Number of Pages

2307-2310

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/ICSENS.2010.5690796

Socpus ID

79951937266 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79951937266

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