Analysis of a force-based quasicontinuum approximation
Matthew Dobson, Mitchell Luskin (2008)
ESAIM: Mathematical Modelling and Numerical Analysis
Similarity:
We analyze a force-based quasicontinuum approximation to a one-dimensional system of atoms that interact by a classical atomistic potential. This force-based quasicontinuum approximation can be derived as the modification of an energy-based quasicontinuum approximation by the addition of nonconservative forces to correct nonphysical “ghost” forces that occur in the atomistic to continuum interface during constant strain. The algorithmic simplicity and consistency with the purely atomistic...