A coupled meshfree technique/molecular dynamics method for multiscale stress and deformation analysis in computational mechanics
Gu, YuanTong (2007) A coupled meshfree technique/molecular dynamics method for multiscale stress and deformation analysis in computational mechanics. In Albermani, Faris (Ed.) 5th Australasian Congress on Applied Mechanics, Dec. 1-12, 2007, Brisbane, Australia.
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A concurrent multiscale method has been developed based on the combination of the advanced meshfree method and molecular dynamics (MD). An advanced transition algorithm using regular transition particles was employed to ensure the compatibility of both displacements and their gradients. An effective local quasi-continuum approach is also applied to obtain the equivalent continuum strain energy density based on the atomistic potentials and Cauchy-Born rule. The influences of the size of transition region and the number of transition particles are investigated thoroughly. It has been demonstrated that the present multiscale simulation technique is very accurate and stable, and it has very good potential to develop a practical simulation tool for the multiscale systems in computational mechanics.
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|Item Type:||Conference Paper|
|Additional Information:||Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the publisher's website (see hypertext link) or contact the author.|
|Keywords:||Multiscale analysis, Meshfree method, Molecular dynamics, Coupling|
|Subjects:||Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanotechnology not elsewhere classified (100799)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2007 Engineers Australia|
|Deposited On:||13 Dec 2007|
|Last Modified:||29 Feb 2012 13:39|
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