Title: | Ductile-brittle behavior at blunted cavities in 3D iron crystals uncovered and covered by copper atoms |
Authors: | Pelikán, Vladimír Hora, Petr Červená, Olga Spielmannová, Alena Machová, Anna |
Citation: | Applied and Computational Mechanics. 2010, vol. 4, no. 2, p. 191-200. |
Issue Date: | 2010 |
Publisher: | University of West Bohemia |
Document type: | článek article |
URI: | http://www.kme.zcu.cz/acm/index.php/acm/article/view/48/56 http://hdl.handle.net/11025/1410 |
ISSN: | 1802-680X (Print) 2336-1182 (Online) |
Keywords: | molekulární dynamika;3D železné krystaly;měděné atomy |
Keywords in different language: | molecular dynamics;3D iron crystal;copper atoms |
Abstract: | This paper is devoted to studies of the mechanical response of an atomically blunted cavity uncovered and covered by copper atoms by means 3D molecular dynamic (MD) simulations. The cavity is loaded uni-axially in tension mode I. Our question is how the copper atoms influence the ductile-brittle behavior at the crack front of the blunted cavity in comparison with the blunted cavity in pure bcc iron. We show that the dislocation emission is easier in the Fe–Cu system in comparison with pure bcc iron. However, stability of the blunted cavities seems to be weaker in copper region than in pure bcc iron. |
Rights: | © 2010 University of West Bohemia. All rights reserved. |
Appears in Collections: | Volume 4, number 2 (2010) Volume 4, number 2 (2010) |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/1410
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