The influence of excitation frequency on the effectiveness of vibrothermographic testing
 
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Department of Robotics and Mechatronics, Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology Al. A. Mickiewicza 30, 30-059 Kraków
Publication date: 2017-12-20
 
Diagnostyka 2014;15(4):47–51
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ABSTRACT
The paper investigates the influence of excitation frequency on the effectiveness of vibrothermographic testing. Vibrothermography is a nondestructive testing method that monitors heat produced by damage under vibrational excitation in order to evaluate the structural health. Layered carbon fiber reinforced polymer plate with polytetrafluoroethylene (PTFE) insert, simulating delamination, was analyzed for a range of excitation frequencies. It was found that some of the frequencies generate much higher thermal response from the simulated and should be therefore preferable for vibrothermographic testing. The paper contains the description of the experimental procedure together with presentation and discussion of the results.
eISSN:2449-5220
ISSN:1641-6414