Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum

Molecular dynamics simulations of cracked nanocrystals of aluminum were performed in order to investigate the crack length and grain boundary effects. Atomistic models of single-crystals and bi-crystals were built considering 11 different crack lengths. Novel approaches based on fracture mechanics c...

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Autores principales:	Wilmer Velilla-Díaz, Habib R. Zambrano
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fracture toughness crack length effect grain boundary bi-crystals single-crystals molecular dynamics simulations Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/f4cb5847359044369fd25d42f458d436
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spelling	oai:doaj.org-article:f4cb5847359044369fd25d42f458d4362021-11-25T18:29:47ZCrack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum10.3390/nano111127832079-4991https://doaj.org/article/f4cb5847359044369fd25d42f458d4362021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2783https://doaj.org/toc/2079-4991Molecular dynamics simulations of cracked nanocrystals of aluminum were performed in order to investigate the crack length and grain boundary effects. Atomistic models of single-crystals and bi-crystals were built considering 11 different crack lengths. Novel approaches based on fracture mechanics concepts were proposed to predict the crack length effect on single-crystals and bi-crystals. The results showed that the effect of the grain boundary on the fracture resistance was beneficial increasing the fracture toughness almost four times for bi-crystals.Wilmer Velilla-DíazHabib R. ZambranoMDPI AGarticlefracture toughnesscrack length effectgrain boundarybi-crystalssingle-crystalsmolecular dynamics simulationsChemistryQD1-999ENNanomaterials, Vol 11, Iss 2783, p 2783 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fracture toughness crack length effect grain boundary bi-crystals single-crystals molecular dynamics simulations Chemistry QD1-999
spellingShingle	fracture toughness crack length effect grain boundary bi-crystals single-crystals molecular dynamics simulations Chemistry QD1-999 Wilmer Velilla-Díaz Habib R. Zambrano Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum
description	Molecular dynamics simulations of cracked nanocrystals of aluminum were performed in order to investigate the crack length and grain boundary effects. Atomistic models of single-crystals and bi-crystals were built considering 11 different crack lengths. Novel approaches based on fracture mechanics concepts were proposed to predict the crack length effect on single-crystals and bi-crystals. The results showed that the effect of the grain boundary on the fracture resistance was beneficial increasing the fracture toughness almost four times for bi-crystals.
format	article
author	Wilmer Velilla-Díaz Habib R. Zambrano
author_facet	Wilmer Velilla-Díaz Habib R. Zambrano
author_sort	Wilmer Velilla-Díaz
title	Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum
title_short	Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum
title_full	Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum
title_fullStr	Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum
title_full_unstemmed	Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum
title_sort	crack length effect on the fracture behavior of single-crystals and bi-crystals of aluminum
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f4cb5847359044369fd25d42f458d436
work_keys_str_mv	AT wilmervelilladiaz cracklengtheffectonthefracturebehaviorofsinglecrystalsandbicrystalsofaluminum AT habibrzambrano cracklengtheffectonthefracturebehaviorofsinglecrystalsandbicrystalsofaluminum
_version_	1718411112016248832

Crack Length Effect on the Fracture Behavior of Single-Crystals and Bi-Crystals of Aluminum

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