Damage Detection In Composites With Embedded Fibre Optic Interferometric Sensors

1990 ◽  
Author(s):  
Kexing Liu ◽  
Suzanne M. Ferguson ◽  
R. M. Measures
Keyword(s):  
Damage Detection ◽  
Fibre Optic ◽  
Interferometric Sensors

Simultaneous measurement of temperature and strain using fibre optic interferometric sensors

1990 ◽  
Author(s):  
Faramarz Farahi ◽  
David J. Webb ◽  
Julian D. C. Jones ◽  
David A. Jackson
Keyword(s):  
Simultaneous Measurement ◽  
Fibre Optic ◽  
Interferometric Sensors

Damage Detection in Composite Skin Stiffener with Hybrid PZT-FO SHM System

2017 ◽  
Vol 754 ◽  
pp. 367-370 ◽  
Author(s):  
Florian Lambinet ◽  
Zahra Sharif Khodaei
Keyword(s):  
Damage Detection ◽  
Hybrid System ◽  
Composite Structure ◽  
Composite Structures ◽  
Diagnostic System ◽  
Fibre Optic ◽  
Artificial Damage

A hybrid piezoelectric (PZT)/fibre optic diagnostic system has been developed for damage detection in built up composite structures. The hybrid system uses PZT transducers to actuate the structure and fibre optic (FO) sensors to capture the propagating wave. The diagnostic system will then have the advantages of both PZT and FO sensors. The applicability of the system is then tested for detecting an artificial damage at a skin/stiffener interface of a thick composite structure. The response of the FO sensors is then compared to PZT sensors and presented.

scholarly journals Fiber Optic Sensors for Damage Detection in Composite Materials

1997 ◽  
Author(s):  
Anand Asundi
Keyword(s):  
Composite Materials ◽  
Damage Detection ◽  
Monitoring System ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Design Rules ◽  
Interferometric Sensors ◽  
On Line ◽  
Proper Design

An absence of proper design rules has limited the application of composite materials to specific areas. However, within these application areas there is still a need to regular monitor the component resulting in significant downtime and loss of revenue. To overcome this it is proposed to have an on-line monitoring system capable of global checking of the component. Fiber optic polarimetric sensors are chosen in this study to globally characterize the health of a component. Polarimetric sensors have better sensitivity than intensity sensors and at the same time are more rugged than interferometric sensors. In this study, the effect of debonds and fiber breakages are investigated in composite bend specimens.

scholarly journals Low-Coherence Fibre-Optic Interferometric Sensors

2011 ◽  
Vol 120 (4) ◽  
pp. 621-624 ◽  
Author(s):  
M. Jedrzejewska-Szczerska ◽  
M. Gnyba ◽  
B.B. Kosmowski
Keyword(s):  
Fibre Optic ◽  
Low Coherence ◽  
Interferometric Sensors
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