Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography

This paper presents the influence of the braiding structural defects on the low-velocity impact damage mechanisms of three-dimensional (3D) braided carbon/epoxy composites. The braiding structural defects are formed by reducing-yarn process. Also, for the samples with and without reducing-yarn defec...

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Autores principales:	Mengyao Sun, Xiaodong Liu, Diantang Zhang, Jin Sun, Kun Qian
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Three-dimensional braided composite Structural defect Low-velocity impact Damage mechanism Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/f1a991066c5f49ed95443893e4cff8b3
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id	oai:doaj.org-article:f1a991066c5f49ed95443893e4cff8b3
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spelling	oai:doaj.org-article:f1a991066c5f49ed95443893e4cff8b32021-11-14T04:28:08ZEffects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography0142-941810.1016/j.polymertesting.2021.107403https://doaj.org/article/f1a991066c5f49ed95443893e4cff8b32021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941821003470https://doaj.org/toc/0142-9418This paper presents the influence of the braiding structural defects on the low-velocity impact damage mechanisms of three-dimensional (3D) braided carbon/epoxy composites. The braiding structural defects are formed by reducing-yarn process. Also, for the samples with and without reducing-yarn defects, two kinds of braided angles, 20° and 40°, are selected, respectively. All the samples are experimentally tested via drop-weight impact method. X-ray micro-computed tomography (micro-CT) techniques are employed to identify the internal damage characteristics. The results show that the structural defects significantly influence the impact mechanical properties of 3D braided composites. Compared to non-defect samples, 3D braided composites with reducing-yarn defects exhibit lower loads and less response time. Moreover, the 40° samples exhibit lighter damage and less damage volume than that of the 20° samples.Mengyao SunXiaodong LiuDiantang ZhangJin SunKun QianElsevierarticleThree-dimensional braided compositeStructural defectLow-velocity impactDamage mechanismPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 104, Iss , Pp 107403- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Three-dimensional braided composite Structural defect Low-velocity impact Damage mechanism Polymers and polymer manufacture TP1080-1185
spellingShingle	Three-dimensional braided composite Structural defect Low-velocity impact Damage mechanism Polymers and polymer manufacture TP1080-1185 Mengyao Sun Xiaodong Liu Diantang Zhang Jin Sun Kun Qian Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography
description	This paper presents the influence of the braiding structural defects on the low-velocity impact damage mechanisms of three-dimensional (3D) braided carbon/epoxy composites. The braiding structural defects are formed by reducing-yarn process. Also, for the samples with and without reducing-yarn defects, two kinds of braided angles, 20° and 40°, are selected, respectively. All the samples are experimentally tested via drop-weight impact method. X-ray micro-computed tomography (micro-CT) techniques are employed to identify the internal damage characteristics. The results show that the structural defects significantly influence the impact mechanical properties of 3D braided composites. Compared to non-defect samples, 3D braided composites with reducing-yarn defects exhibit lower loads and less response time. Moreover, the 40° samples exhibit lighter damage and less damage volume than that of the 20° samples.
format	article
author	Mengyao Sun Xiaodong Liu Diantang Zhang Jin Sun Kun Qian
author_facet	Mengyao Sun Xiaodong Liu Diantang Zhang Jin Sun Kun Qian
author_sort	Mengyao Sun
title	Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography
title_short	Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography
title_full	Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography
title_fullStr	Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography
title_full_unstemmed	Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography
title_sort	effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on x-ray micro-computed tomography
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f1a991066c5f49ed95443893e4cff8b3
work_keys_str_mv	AT mengyaosun effectsofstructuraldefectsonlowvelocityimpactdamagemechanismsofthreedimensionalbraidedcompositesbasedonxraymicrocomputedtomography AT xiaodongliu effectsofstructuraldefectsonlowvelocityimpactdamagemechanismsofthreedimensionalbraidedcompositesbasedonxraymicrocomputedtomography AT diantangzhang effectsofstructuraldefectsonlowvelocityimpactdamagemechanismsofthreedimensionalbraidedcompositesbasedonxraymicrocomputedtomography AT jinsun effectsofstructuraldefectsonlowvelocityimpactdamagemechanismsofthreedimensionalbraidedcompositesbasedonxraymicrocomputedtomography AT kunqian effectsofstructuraldefectsonlowvelocityimpactdamagemechanismsofthreedimensionalbraidedcompositesbasedonxraymicrocomputedtomography
_version_	1718430051401203712

Effects of structural defects on low-velocity impact damage mechanisms of three-dimensional braided composites based on X-ray micro-computed tomography

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