An experimental study on damage intensity in composite plates subjected to low-velocity impacts

Today composite structures are widely used in different industries. Since these structures are sometimes experienced impacts of low-velocity objects, evaluating the intensity of the damage due to the impact in these structures seems important and necessary. In this article, the effectiveness of the...

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Autores principales:	Sajjad Seifoori, R. Izadi, G.H. Liaghat, Ahmad Mahdian Parrany
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Damage evaluation Composite laminates Low-velocity impact Active thermography analysis Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/f15dff54353840f8ae8d0610b0d14288
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spelling	oai:doaj.org-article:f15dff54353840f8ae8d0610b0d142882021-11-24T04:23:50ZAn experimental study on damage intensity in composite plates subjected to low-velocity impacts0142-941810.1016/j.polymertesting.2020.106887https://doaj.org/article/f15dff54353840f8ae8d0610b0d142882021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321164https://doaj.org/toc/0142-9418Today composite structures are widely used in different industries. Since these structures are sometimes experienced impacts of low-velocity objects, evaluating the intensity of the damage due to the impact in these structures seems important and necessary. In this article, the effectiveness of the thermography method with three different thermal excitation sources, including the ultrasonic vibrothermography, infrared thermography with the heating element, and infrared thermography with hot airflow, for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts are investigated. The ultrasonic vibrothermography method is introduced as the most promising technique for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts, and the effect of the excitation power and excitation frequency on the effectiveness of this method is studied. To find the damage location in the thermography images in which the damage is not clear enough to be identified, the wavelet transform is applied while it is not suitable for calculating the damaged area. Finally, finite element (FE) simulations are carried out for the case of an internal defect. The results show the acceptable accuracy of the FE simulation in comparison with the experimental results.Sajjad SeifooriR. IzadiG.H. LiaghatAhmad Mahdian ParranyElsevierarticleDamage evaluationComposite laminatesLow-velocity impactActive thermography analysisPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106887- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Damage evaluation Composite laminates Low-velocity impact Active thermography analysis Polymers and polymer manufacture TP1080-1185
spellingShingle	Damage evaluation Composite laminates Low-velocity impact Active thermography analysis Polymers and polymer manufacture TP1080-1185 Sajjad Seifoori R. Izadi G.H. Liaghat Ahmad Mahdian Parrany An experimental study on damage intensity in composite plates subjected to low-velocity impacts
description	Today composite structures are widely used in different industries. Since these structures are sometimes experienced impacts of low-velocity objects, evaluating the intensity of the damage due to the impact in these structures seems important and necessary. In this article, the effectiveness of the thermography method with three different thermal excitation sources, including the ultrasonic vibrothermography, infrared thermography with the heating element, and infrared thermography with hot airflow, for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts are investigated. The ultrasonic vibrothermography method is introduced as the most promising technique for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts, and the effect of the excitation power and excitation frequency on the effectiveness of this method is studied. To find the damage location in the thermography images in which the damage is not clear enough to be identified, the wavelet transform is applied while it is not suitable for calculating the damaged area. Finally, finite element (FE) simulations are carried out for the case of an internal defect. The results show the acceptable accuracy of the FE simulation in comparison with the experimental results.
format	article
author	Sajjad Seifoori R. Izadi G.H. Liaghat Ahmad Mahdian Parrany
author_facet	Sajjad Seifoori R. Izadi G.H. Liaghat Ahmad Mahdian Parrany
author_sort	Sajjad Seifoori
title	An experimental study on damage intensity in composite plates subjected to low-velocity impacts
title_short	An experimental study on damage intensity in composite plates subjected to low-velocity impacts
title_full	An experimental study on damage intensity in composite plates subjected to low-velocity impacts
title_fullStr	An experimental study on damage intensity in composite plates subjected to low-velocity impacts
title_full_unstemmed	An experimental study on damage intensity in composite plates subjected to low-velocity impacts
title_sort	experimental study on damage intensity in composite plates subjected to low-velocity impacts
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f15dff54353840f8ae8d0610b0d14288
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An experimental study on damage intensity in composite plates subjected to low-velocity impacts

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