In small scales, atomic approaches are important in finding various mechanisms of material deformations and failures, while at the macroscopic scale continuum theories provide foundations for developing physical or constitutive laws. Connections for different scales are significant to reveal the multiscale process of material deformation and failure. A coupling numerical model across atom/continuum was established in this paper, and the linkage between atoms and finite element nodes was based on a displacement iteration procedure. Preliminary results of crack blunting and voids expansion were obtained by the coupling model.
