Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites

Compared with their monolithic version, layered structures are known to be beneficial in the design of materials, especially ceramics, providing enhanced fracture toughness, mechanical strength, and overall reliability. This was proposed in recent decades and extensively studied in the engineering l...

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Autor principal:	Hanoch Daniel Wagner
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	interfaces fracture arrest biological composites layered structures crack deflection Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/e2fad059999341f08c79449a2cffab6c
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id	oai:doaj.org-article:e2fad059999341f08c79449a2cffab6c
record_format	dspace
spelling	oai:doaj.org-article:e2fad059999341f08c79449a2cffab6c2021-11-25T18:14:09ZHierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites10.3390/ma142268551996-1944https://doaj.org/article/e2fad059999341f08c79449a2cffab6c2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6855https://doaj.org/toc/1996-1944Compared with their monolithic version, layered structures are known to be beneficial in the design of materials, especially ceramics, providing enhanced fracture toughness, mechanical strength, and overall reliability. This was proposed in recent decades and extensively studied in the engineering literature. The source of the property enhancement is the ability of layered structures to deflect and often arrest propagating cracks along internal interfaces between layers. Similar crack-stopping abilities are found in nature for a broad range of fibrillary layered biological structures. Such abilities are largely governed by complex architectural design solutions and geometries, which all appear to involve the presence of various types of internal interfaces at different structural levels. The simultaneous occurrence at several scales of different types of interfaces, designated here as hierarchical interfaces, within judiciously designed layered composite materials, is a powerful approach that constrains cracks to bifurcate and stop. This is concisely described here using selected biological examples, potentially serving as inspiration for alternative designs of engineering composites.Hanoch Daniel WagnerMDPI AGarticleinterfacesfracture arrestbiological compositeslayered structurescrack deflectionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6855, p 6855 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	interfaces fracture arrest biological composites layered structures crack deflection Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	interfaces fracture arrest biological composites layered structures crack deflection Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Hanoch Daniel Wagner Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites
description	Compared with their monolithic version, layered structures are known to be beneficial in the design of materials, especially ceramics, providing enhanced fracture toughness, mechanical strength, and overall reliability. This was proposed in recent decades and extensively studied in the engineering literature. The source of the property enhancement is the ability of layered structures to deflect and often arrest propagating cracks along internal interfaces between layers. Similar crack-stopping abilities are found in nature for a broad range of fibrillary layered biological structures. Such abilities are largely governed by complex architectural design solutions and geometries, which all appear to involve the presence of various types of internal interfaces at different structural levels. The simultaneous occurrence at several scales of different types of interfaces, designated here as hierarchical interfaces, within judiciously designed layered composite materials, is a powerful approach that constrains cracks to bifurcate and stop. This is concisely described here using selected biological examples, potentially serving as inspiration for alternative designs of engineering composites.
format	article
author	Hanoch Daniel Wagner
author_facet	Hanoch Daniel Wagner
author_sort	Hanoch Daniel Wagner
title	Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites
title_short	Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites
title_full	Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites
title_fullStr	Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites
title_full_unstemmed	Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites
title_sort	hierarchical interfaces as fracture propagation traps in natural layered composites
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e2fad059999341f08c79449a2cffab6c
work_keys_str_mv	AT hanochdanielwagner hierarchicalinterfacesasfracturepropagationtrapsinnaturallayeredcomposites
_version_	1718411472306962432

Hierarchical Interfaces as Fracture Propagation Traps in Natural Layered Composites

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