Analytical and theoretical study of vibration-based damage detection technique in a composite structure

Author(s):  
Ahmed Uwayed
2014 ◽  
Vol 1055 ◽  
pp. 32-37
Author(s):  
Tian Jiao Liu ◽  
Wei Fang Zhang ◽  
Xiao Liang Fang

It mainly introduces four methods, permeation testing method, radiographic inspection, ultrasonic inspection and measurement and holographic speckle detection, to test composite structure defects, including their testing principles, field of application, specific testing steps,etc. Among the four nondestructive testing technologies for composite materials, the holographic speckle detection is the most advanced and widely used one and has been being improved.


2017 ◽  
Vol 754 ◽  
pp. 367-370 ◽  
Author(s):  
Florian Lambinet ◽  
Zahra Sharif Khodaei

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.


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