Abstract
The Peierls–Nabarro (PN) model for dislocations is a hybrid model that incorporates the atomistic information of the dislocation core structure into the continuum theory. In this paper, we study the convergence from a full atomistic model to the PN model with \({\gamma}\)-surface for the dislocation in a bilayer system. We prove that the displacement field and the total energy of the dislocation solution of the PN model are asymptotically close to those of the full atomistic model. Our work can be considered as a generalization of the analysis of the convergence from atomistic model to Cauchy–Born rule for crystals without defects.
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Luo, T., Ming, P. & Xiang, Y. From Atomistic Model to the Peierls–Nabarro Model with \({\gamma}\)-surface for Dislocations. Arch Rational Mech Anal 230, 735–781 (2018). https://doi.org/10.1007/s00205-018-1257-x
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DOI: https://doi.org/10.1007/s00205-018-1257-x