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Crack Orientation versus Ductile-Brittle Behavior in 3D Atomistic Simulations

Journal Materials Science Forum (Volumes 567 - 568)
Volume Materials Structure & Micromechanics of Fracture V
Edited by Pavel Šandera
Pages 61-64
DOI 10.4028/www.scientific.net/MSF.567-568.61
Citation Alena Spielmannová et al., 2007, Materials Science Forum, 567-568, 61
Online since December, 2007
Authors Alena Spielmannová, Anna Machová, Petr Hora
Keywords BCC Iron, Crack Growth, Dislocation Emission, Twinning
Abstract

The paper presents results of molecular dynamic (MD) simulations in 3D bcc iron crystals with edge pre-existing cracks (001)[110] and (110) [110] (crack plane/crack front) loaded uni-axially in tension mode I at temperature of 300 K. The iron crystals in MD have the same orientation and similar geometry as in our recent fracture tests performed at room temperature on iron (3wt.%Si) single crystals [1].

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