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A multiscale deformation analysis for mono-crystalline copper under dynamic uniaxial tension

Gu, YuanTong & Yarlagadda, Prasad K.D.V. (2008) A multiscale deformation analysis for mono-crystalline copper under dynamic uniaxial tension. Advanced Materials Research, 32, pp. 241-244.

Abstract

This paper presents a concurrent multiscale study for the deformation mechanism of mono-crystalline copper under dynamic uniaxial tension. The multiscale simulation is based on the coupled meshless and molecular dynamic (MD) method. Using it, the size of computational model can be extended to a large dimension (in micrometer) with an atomistic resolution. The pure MD simulation is difficult to reach this microscopic dimension because the number of atoms will be too large. In this study, it has been revealed that the deformation behavior and mechanism of the copper is sensitive to its size, geometry, and loading strain rate. In addition, the Young's modulus is found to be independent of the cross-sectional size and the strain rate range considered in this study. On the other hand, the yield stress decreases with specimen length and increases with the loading strain rate.

Impact and interest:

3 citations in Scopus
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1 citations in Web of Science®

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114 since deposited on 06 Oct 2008
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ID Code: 15020
Item Type: Journal Article
Additional URLs:
Keywords: copper, deformation mechanism, multiscale, molecular dynamics, meshless method
ISSN: 1022-6680
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > NUMERICAL AND COMPUTATIONAL MATHEMATICS (010300) > Numerical Analysis (010301)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Interdisciplinary Engineering not elsewhere classified (091599)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MANUFACTURING ENGINEERING (091000) > Manufacturing Engineering not elsewhere classified (091099)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanotechnology not elsewhere classified (100799)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Materials Engineering not elsewhere classified (091299)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2008 Trans Tech Publications
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 06 Oct 2008
Last Modified: 29 Feb 2012 23:44

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