Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy

Abstract In order to elucidate the hygroscopic effects on impact-resistance of carbon fiber/epoxy quasi-isotropic composite plates, low-velocity impact tests are conducted on dry and hygroscopically conditioned plates, respectively, under identical configurations. For the impact tests, plates were i...

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Autores principales:	Furqan Ahmad, Fethi Abbassi, Mazhar Ul-Islam, Frédéric Jacquemin, Jung-Wuk Hong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/13615a35cace4133bb20ccd3fb7eea14
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spelling	oai:doaj.org-article:13615a35cace4133bb20ccd3fb7eea142021-12-02T13:51:15ZEnhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy10.1038/s41598-021-81443-w2045-2322https://doaj.org/article/13615a35cace4133bb20ccd3fb7eea142021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81443-whttps://doaj.org/toc/2045-2322Abstract In order to elucidate the hygroscopic effects on impact-resistance of carbon fiber/epoxy quasi-isotropic composite plates, low-velocity impact tests are conducted on dry and hygroscopically conditioned plates, respectively, under identical configurations. For the impact tests, plates were immersed in the hot water at 80 °C to absorb a different amount of moisture content (MC). Experimental results reveal that the presence of the MC plays a pivotal role by improving the impact-resistance of composite plates. Plates with higher percentage of MC could behave elastically to a larger strain, yielding larger deflection under impact loading. From SEM fractographies, it is observed that small disbanding grows at the interface of epoxy and carbon fiber due to absorbed MC. After absorbing MC, most of impact energy is dissipated in hygroscopic conditioned composite plates through elastic deformation and overall less damage is induced in wet composite plates compare to the dry plate. We can postulate that the presence of MC increases the elastic limit as well as ductility of the epoxy by promoting chain segmental mobility of the polymer molecules, which eventually leads to the enhancement of the impact-resistance of wet quasi-isotropic composite plates in comparison with the dry plate.Furqan AhmadFethi AbbassiMazhar Ul-IslamFrédéric JacqueminJung-Wuk HongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Furqan Ahmad Fethi Abbassi Mazhar Ul-Islam Frédéric Jacquemin Jung-Wuk Hong Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
description	Abstract In order to elucidate the hygroscopic effects on impact-resistance of carbon fiber/epoxy quasi-isotropic composite plates, low-velocity impact tests are conducted on dry and hygroscopically conditioned plates, respectively, under identical configurations. For the impact tests, plates were immersed in the hot water at 80 °C to absorb a different amount of moisture content (MC). Experimental results reveal that the presence of the MC plays a pivotal role by improving the impact-resistance of composite plates. Plates with higher percentage of MC could behave elastically to a larger strain, yielding larger deflection under impact loading. From SEM fractographies, it is observed that small disbanding grows at the interface of epoxy and carbon fiber due to absorbed MC. After absorbing MC, most of impact energy is dissipated in hygroscopic conditioned composite plates through elastic deformation and overall less damage is induced in wet composite plates compare to the dry plate. We can postulate that the presence of MC increases the elastic limit as well as ductility of the epoxy by promoting chain segmental mobility of the polymer molecules, which eventually leads to the enhancement of the impact-resistance of wet quasi-isotropic composite plates in comparison with the dry plate.
format	article
author	Furqan Ahmad Fethi Abbassi Mazhar Ul-Islam Frédéric Jacquemin Jung-Wuk Hong
author_facet	Furqan Ahmad Fethi Abbassi Mazhar Ul-Islam Frédéric Jacquemin Jung-Wuk Hong
author_sort	Furqan Ahmad
title	Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
title_short	Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
title_full	Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
title_fullStr	Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
title_full_unstemmed	Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
title_sort	enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/13615a35cace4133bb20ccd3fb7eea14
work_keys_str_mv	AT furqanahmad enhancedimpactresistanceofaeronauticalquasiisotropiccompositeplatesthroughdiffusedwatermoleculesinepoxy AT fethiabbassi enhancedimpactresistanceofaeronauticalquasiisotropiccompositeplatesthroughdiffusedwatermoleculesinepoxy AT mazharulislam enhancedimpactresistanceofaeronauticalquasiisotropiccompositeplatesthroughdiffusedwatermoleculesinepoxy AT fredericjacquemin enhancedimpactresistanceofaeronauticalquasiisotropiccompositeplatesthroughdiffusedwatermoleculesinepoxy AT jungwukhong enhancedimpactresistanceofaeronauticalquasiisotropiccompositeplatesthroughdiffusedwatermoleculesinepoxy
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Enhanced impact-resistance of aeronautical quasi-isotropic composite plates through diffused water molecules in epoxy

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