Application of a Lamb waves based technique for structural health monitoring of GFRP undercyclic loading

Application of a Lamb waves based technique for structural health monitoring of GFRP undercyclic loading

Bibliographic Details
Parent link:IOP Conference Series: Materials Science and Engineering
Vol. 124 : Mechanical Engineering, Automation and Control Systems (MEACS2015).— 2016.— [012084, 7 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра материаловедения в машиностроении (ММС)
Other Authors: Eremin A. V. Alexandr Vyacheslavovich, Byakov A. V. Anton Viktorovich, Panin S. V. Sergey Viktorovich, Burkov M. V. Mikhail Vladimirovich, Lyubutin P. S. Pavel Stepanovich, Sunder R.
Summary:Title screen
A Lamb wave based ultrasonic technique as well as optical image characterization was utilized to estimate a current mechanical state of glass fiber reinforced polymers (GFRP) under cyclic tension. The ultrasonic acoustic method was applied in a 'pitch-catch' mode using piezoelectric transducers adhesively bonded onto a specimen surface. Numerical evaluation of acoustic data was performed by calculating two informative parameters: maximum of amplitude of the received signal and variance of signal envelopes. Optical images were registered and then analysed by calculating Shannon entropy that makes it possible to characterize changing of GFRP specimen translucency. The obtained results were treated in order to find out the relation between the current mechanical state of a specimen and informative parameter values being computed from the acoustic and optical signals.
Language:English
Published: 2016
Series:Numerical Simulation of Applied Problems
Subjects:
электронный ресурс
труды учёных ТПУ
волны Лэмба
мониторинг
здоровье
углепластики
циклические нагрузки
стекловолокна
сигналы
оптические изображения
ультразвуковые методы
циклическое растяжение
Online Access:http://dx.doi.org/10.1088/1757-899X/124/1/012084
http://earchive.tpu.ru/handle/11683/33860
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648551

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