Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell

Strombus gigas shell is a lightweight, high-strength and high-toughness biocomposite material. In-depth exploration of its internal microstructure characteristics and the corresponding strengthening and toughening mechanism is of great significance to the design of high-performance composite materia...

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Auteurs principaux:	Zhenbin Zha, Feng Xu, Yongcun Li, Yu Xiao, Xiaofang Hu
Format:	article
Langue:	EN
Publié:	Elsevier 2021
Sujets:	Hierarchical structure Synchrotron radiation X-ray computed tomography Crack propagation Weak interface Toughening mechanism Materials of engineering and construction. Mechanics of materials TA401-492
Accès en ligne:	https://doaj.org/article/248ea7ccb59f476eae0cee4610514e30
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spelling	oai:doaj.org-article:248ea7ccb59f476eae0cee4610514e302021-11-12T04:24:36ZInternal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell0264-127510.1016/j.matdes.2021.110211https://doaj.org/article/248ea7ccb59f476eae0cee4610514e302021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521007668https://doaj.org/toc/0264-1275Strombus gigas shell is a lightweight, high-strength and high-toughness biocomposite material. In-depth exploration of its internal microstructure characteristics and the corresponding strengthening and toughening mechanism is of great significance to the design of high-performance composite materials. Here, the high-resolution synchrotron radiation X-ray computed tomography technology was adopted to carry out the in-situ three-dimensional investigation on the deformation and fracture evolution of the internal crossed-lamellar hierarchical structures of the Strombus gigas shell during the tensile process. In the experiment, some important three-dimensional crack initiation and propagation evolution phenomena were observed, such as the multi-point bursting, progressive propagation and spatial network arrangement of cracks and the reverse ‘C’-shaped cracks, which may have great contribution to the load-bearing capacity and toughness of the shell. According to the mechanical analysis of the visualized evolutionary information of the deformation and fracture of hierarchical microstructures, a strengthening and toughening regulation mechanisms that driven by the local stress concentration, and guided by the hierarchical structure and weak interface was proposed. This study may have a positive guiding significance for exploring and learning the toughening design strategy of lightweight composites.Zhenbin ZhaFeng XuYongcun LiYu XiaoXiaofang HuElsevierarticleHierarchical structureSynchrotron radiation X-ray computed tomographyCrack propagationWeak interfaceToughening mechanismMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110211- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Hierarchical structure Synchrotron radiation X-ray computed tomography Crack propagation Weak interface Toughening mechanism Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Hierarchical structure Synchrotron radiation X-ray computed tomography Crack propagation Weak interface Toughening mechanism Materials of engineering and construction. Mechanics of materials TA401-492 Zhenbin Zha Feng Xu Yongcun Li Yu Xiao Xiaofang Hu Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell
description	Strombus gigas shell is a lightweight, high-strength and high-toughness biocomposite material. In-depth exploration of its internal microstructure characteristics and the corresponding strengthening and toughening mechanism is of great significance to the design of high-performance composite materials. Here, the high-resolution synchrotron radiation X-ray computed tomography technology was adopted to carry out the in-situ three-dimensional investigation on the deformation and fracture evolution of the internal crossed-lamellar hierarchical structures of the Strombus gigas shell during the tensile process. In the experiment, some important three-dimensional crack initiation and propagation evolution phenomena were observed, such as the multi-point bursting, progressive propagation and spatial network arrangement of cracks and the reverse ‘C’-shaped cracks, which may have great contribution to the load-bearing capacity and toughness of the shell. According to the mechanical analysis of the visualized evolutionary information of the deformation and fracture of hierarchical microstructures, a strengthening and toughening regulation mechanisms that driven by the local stress concentration, and guided by the hierarchical structure and weak interface was proposed. This study may have a positive guiding significance for exploring and learning the toughening design strategy of lightweight composites.
format	article
author	Zhenbin Zha Feng Xu Yongcun Li Yu Xiao Xiaofang Hu
author_facet	Zhenbin Zha Feng Xu Yongcun Li Yu Xiao Xiaofang Hu
author_sort	Zhenbin Zha
title	Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell
title_short	Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell
title_full	Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell
title_fullStr	Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell
title_full_unstemmed	Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell
title_sort	internal 3d cracks evolution and the toughening mechanisms of the hierarchical structures in strombus gigas shell
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/248ea7ccb59f476eae0cee4610514e30
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Internal 3D cracks evolution and the toughening mechanisms of the hierarchical structures in Strombus gigas shell

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