Computations of the thermo-mechanical behaviors of polycrystalline structures at micro-scale based on molecular dynamics
Received:August 20, 2010  Revised:March 01, 2011
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DOI:10.7511/jslx20121017
KeyWord:molecular dynamics simulations  continuum models  polycrystalline structures  micro-scale  thermo-mechanical behaviors
     
AuthorInstitution
田霞 河海大学, 南京
崔俊芝 中国科学院 数学与系统科学研究院, 北京
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Abstract:
      A numerical method based on molecular dynamics simulations for modeling thermo-mechanical behaviors of polycrystalline materials at micro-scale is presented.The main point is,the conservation laws should be satisfied both at the continuum models and atomic levels at the micro-scale.Compared with conventional continuum mechanics,the continuum fluxes in our model are calculated through molecular dynamics simulations.Hence,empirical constitutive laws can be bypassed.