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    Multiscale Computation for Nano/Micromaterials

    Source: Journal of Engineering Mechanics:;2009:;Volume ( 135 ):;issue: 003
    Author:
    James D. Lee
    ,
    Xianqiao Wang
    ,
    Youping Chen
    DOI: 10.1061/(ASCE)0733-9399(2009)135:3(192)
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents a multiscale field theory and its applications in modeling and simulation of atomistic systems. The theoretical construction of the multiscale field theory is briefly introduced. A single crystal is discretized into finite-element mesh as if it is a continuous medium. However, each node is a representative unit cell, which contains a specified number of distinctive atoms. Ordinary differential equations for each atom in all nodes are obtained. Material behaviors of a given atomistic system at nano/microscale, subject to the combination of mechanical loadings, electromagnetic field, and temperature field, can be obtained through numerical simulations. Sample problems on wave propagation and simple tension have been solved to demonstrate the advantage and applicability of this multiscale field theory.
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      Multiscale Computation for Nano/Micromaterials

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    contributor authorJames D. Lee
    contributor authorXianqiao Wang
    contributor authorYouping Chen
    date accessioned2017-05-08T22:41:31Z
    date available2017-05-08T22:41:31Z
    date copyrightMarch 2009
    date issued2009
    identifier other%28asce%290733-9399%282009%29135%3A3%28192%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/86649
    description abstractThis paper presents a multiscale field theory and its applications in modeling and simulation of atomistic systems. The theoretical construction of the multiscale field theory is briefly introduced. A single crystal is discretized into finite-element mesh as if it is a continuous medium. However, each node is a representative unit cell, which contains a specified number of distinctive atoms. Ordinary differential equations for each atom in all nodes are obtained. Material behaviors of a given atomistic system at nano/microscale, subject to the combination of mechanical loadings, electromagnetic field, and temperature field, can be obtained through numerical simulations. Sample problems on wave propagation and simple tension have been solved to demonstrate the advantage and applicability of this multiscale field theory.
    publisherAmerican Society of Civil Engineers
    titleMultiscale Computation for Nano/Micromaterials
    typeJournal Paper
    journal volume135
    journal issue3
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)0733-9399(2009)135:3(192)
    treeJournal of Engineering Mechanics:;2009:;Volume ( 135 ):;issue: 003
    contenttypeFulltext
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