$Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique$
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Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique

This paper presents a comprehensive study on determining the interface adhesive strength of the polymer coating/substrate system to improve its durability. Interfacial stress intensity factors based on the crack tip opening displacement (CTOD) method were theoretically analysed and verified by the f...

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Autores principales:	Wenjie Qian, Huiying Zhang, Jianguo Zhu, Jian Li, Jian Zhang, Muyu Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Polymer coating Stress intensity factor Crack tip opening displacement Digital image correlation Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/13a326d5f12447339b74c2b807974347
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spelling	oai:doaj.org-article:13a326d5f12447339b74c2b8079743472021-11-24T04:24:00ZDetermination of fracture toughness of polymer coating using micro-scale digital image correlation technique0142-941810.1016/j.polymertesting.2020.106896https://doaj.org/article/13a326d5f12447339b74c2b8079743472021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321255https://doaj.org/toc/0142-9418This paper presents a comprehensive study on determining the interface adhesive strength of the polymer coating/substrate system to improve its durability. Interfacial stress intensity factors based on the crack tip opening displacement (CTOD) method were theoretically analysed and verified by the finite element simulation. Thereafter, an experimental setup was established with the micro-scale digital image correlation (DIC) method to measure the CTODs and the designed loading fixture for multi-angle loading. The apparent specimen rotation and out-of-plane displacement were significantly restrained in the test, and the measured displacement accuracy of the micro-scale DIC method was approximately 1/10 of the minimum CTOD value. Mixed-mode stress intensity factors and an interfacial failure criterion curve in terms of stress intensity factors were obtained. Furthermore, the test method was applied to evaluate the interfacial fracture toughness of nanoparticle-reinforced epoxy coatings. The experimental results demonstrate that determining the stress intensity factors on the interface of the polymer coating/substrate system based on the CTODs is an effective and reliable approach.Wenjie QianHuiying ZhangJianguo ZhuJian LiJian ZhangMuyu ZhangElsevierarticlePolymer coatingStress intensity factorCrack tip opening displacementDigital image correlationPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106896- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Polymer coating Stress intensity factor Crack tip opening displacement Digital image correlation Polymers and polymer manufacture TP1080-1185
spellingShingle	Polymer coating Stress intensity factor Crack tip opening displacement Digital image correlation Polymers and polymer manufacture TP1080-1185 Wenjie Qian Huiying Zhang Jianguo Zhu Jian Li Jian Zhang Muyu Zhang Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
description	This paper presents a comprehensive study on determining the interface adhesive strength of the polymer coating/substrate system to improve its durability. Interfacial stress intensity factors based on the crack tip opening displacement (CTOD) method were theoretically analysed and verified by the finite element simulation. Thereafter, an experimental setup was established with the micro-scale digital image correlation (DIC) method to measure the CTODs and the designed loading fixture for multi-angle loading. The apparent specimen rotation and out-of-plane displacement were significantly restrained in the test, and the measured displacement accuracy of the micro-scale DIC method was approximately 1/10 of the minimum CTOD value. Mixed-mode stress intensity factors and an interfacial failure criterion curve in terms of stress intensity factors were obtained. Furthermore, the test method was applied to evaluate the interfacial fracture toughness of nanoparticle-reinforced epoxy coatings. The experimental results demonstrate that determining the stress intensity factors on the interface of the polymer coating/substrate system based on the CTODs is an effective and reliable approach.
format	article
author	Wenjie Qian Huiying Zhang Jianguo Zhu Jian Li Jian Zhang Muyu Zhang
author_facet	Wenjie Qian Huiying Zhang Jianguo Zhu Jian Li Jian Zhang Muyu Zhang
author_sort	Wenjie Qian
title	Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
title_short	Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
title_full	Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
title_fullStr	Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
title_full_unstemmed	Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
title_sort	determination of fracture toughness of polymer coating using micro-scale digital image correlation technique
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/13a326d5f12447339b74c2b807974347
work_keys_str_mv	AT wenjieqian determinationoffracturetoughnessofpolymercoatingusingmicroscaledigitalimagecorrelationtechnique AT huiyingzhang determinationoffracturetoughnessofpolymercoatingusingmicroscaledigitalimagecorrelationtechnique AT jianguozhu determinationoffracturetoughnessofpolymercoatingusingmicroscaledigitalimagecorrelationtechnique AT jianli determinationoffracturetoughnessofpolymercoatingusingmicroscaledigitalimagecorrelationtechnique AT jianzhang determinationoffracturetoughnessofpolymercoatingusingmicroscaledigitalimagecorrelationtechnique AT muyuzhang determinationoffracturetoughnessofpolymercoatingusingmicroscaledigitalimagecorrelationtechnique
_version_	1718416019568984064

Determination of fracture toughness of polymer coating using micro-scale digital image correlation technique

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