$Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite$
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Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite

This paper aims to improve the interlaminar fracture toughness of carbon fiber reinforced polymer (CFRP) composites by implanting fine z-pins with the minimum damage on in-plane fibers. Z-pins with diameters as small as 0.1 mm and 0.2 mm were prepared by using carbon fiber tows with different mechan...

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Autores principales:	Min Li, Zhe Che, Shaokai Wang, Yubo Zhou, Hao Fu, Yizhuo Gu, Wei Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Polymer-matrix composites Fracture toughness Z-pin Delamination Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/064b13f8c6b546bc86059666e6b01987
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id	oai:doaj.org-article:064b13f8c6b546bc86059666e6b01987
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spelling	oai:doaj.org-article:064b13f8c6b546bc86059666e6b019872021-12-04T04:32:19ZTuning interlaminar fracture toughness of fine z-pin reinforced polymer composite0264-127510.1016/j.matdes.2021.110293https://doaj.org/article/064b13f8c6b546bc86059666e6b019872021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008480https://doaj.org/toc/0264-1275This paper aims to improve the interlaminar fracture toughness of carbon fiber reinforced polymer (CFRP) composites by implanting fine z-pins with the minimum damage on in-plane fibers. Z-pins with diameters as small as 0.1 mm and 0.2 mm were prepared by using carbon fiber tows with different mechanical properties. The effect of the mechanical property of carbon fiber pin on the interlaminar fracture toughness of composite laminate was investigated to reveal the enhancement mechanism. The results show that fine z-pins significantly improve the interlaminar fracture toughness and simultaneously are favorable for maintaining high retentions of in-plane mechanical properties of composite laminate. Compared with control sample, the propagation GIC values of CFRPs implanted with 0.2 mm and 0.1 mm CCF800 z-pins increase by 276 % and 541 % respectively at a low pin volume fraction of 0.16 vol%. Both z-pin pull-out and z-pin fracture failure behaviors can be observed for these fine z-pin reinforced composites. The higher tensile properties of z-pins and better transverse shear resistance tend to result in the failure of z-pin pull-out. With the decrease of z-pin diameter, the probability of z-pin fracture failure becomes greater, and correspondingly stronger pinning effect and larger failure load are achieved.Min LiZhe CheShaokai WangYubo ZhouHao FuYizhuo GuWei ZhangElsevierarticlePolymer-matrix compositesFracture toughnessZ-pinDelaminationMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110293- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Polymer-matrix composites Fracture toughness Z-pin Delamination Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Polymer-matrix composites Fracture toughness Z-pin Delamination Materials of engineering and construction. Mechanics of materials TA401-492 Min Li Zhe Che Shaokai Wang Yubo Zhou Hao Fu Yizhuo Gu Wei Zhang Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
description	This paper aims to improve the interlaminar fracture toughness of carbon fiber reinforced polymer (CFRP) composites by implanting fine z-pins with the minimum damage on in-plane fibers. Z-pins with diameters as small as 0.1 mm and 0.2 mm were prepared by using carbon fiber tows with different mechanical properties. The effect of the mechanical property of carbon fiber pin on the interlaminar fracture toughness of composite laminate was investigated to reveal the enhancement mechanism. The results show that fine z-pins significantly improve the interlaminar fracture toughness and simultaneously are favorable for maintaining high retentions of in-plane mechanical properties of composite laminate. Compared with control sample, the propagation GIC values of CFRPs implanted with 0.2 mm and 0.1 mm CCF800 z-pins increase by 276 % and 541 % respectively at a low pin volume fraction of 0.16 vol%. Both z-pin pull-out and z-pin fracture failure behaviors can be observed for these fine z-pin reinforced composites. The higher tensile properties of z-pins and better transverse shear resistance tend to result in the failure of z-pin pull-out. With the decrease of z-pin diameter, the probability of z-pin fracture failure becomes greater, and correspondingly stronger pinning effect and larger failure load are achieved.
format	article
author	Min Li Zhe Che Shaokai Wang Yubo Zhou Hao Fu Yizhuo Gu Wei Zhang
author_facet	Min Li Zhe Che Shaokai Wang Yubo Zhou Hao Fu Yizhuo Gu Wei Zhang
author_sort	Min Li
title	Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
title_short	Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
title_full	Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
title_fullStr	Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
title_full_unstemmed	Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
title_sort	tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/064b13f8c6b546bc86059666e6b01987
work_keys_str_mv	AT minli tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite AT zheche tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite AT shaokaiwang tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite AT yubozhou tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite AT haofu tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite AT yizhuogu tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite AT weizhang tuninginterlaminarfracturetoughnessoffinezpinreinforcedpolymercomposite
_version_	1718373010549768192

Tuning interlaminar fracture toughness of fine z-pin reinforced polymer composite

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