Positive Definiteness of the Blended Force-Based Quasicontinuum Method

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Positive Definiteness of the Blended Force-Based Quasicontinuum Method

The development of consistent and stable quasicontinuum models for multidimensional crystalline solids remains a challenge. For example, proving the stability of the force-based quasicontinuum (QCF) model [M. Dobson and M. Luskin, M2AN Math. Model. Numer. Anal., 42 (2008), pp. 113–139] remains an open problem. In one and two dimensions, we show that by blending atomistic and Cauchy–Born continu...

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ژورنال

عنوان ژورنال: Multiscale Modeling & Simulation

سال: 2012

ISSN: 1540-3459,1540-3467

DOI: 10.1137/110859270