Abstract
Atomistic/continuum coupling methods aim to achieve optimal balance between accuracy and efficiency. Adaptivity is the key for the efficient implementation of such methods. In this paper, we carry out a rigorous a posteriori analysis of the residual, the stability constant, and the error bound, for a consistent atomistic/continuum coupling method in 2D. We design and implement the corresponding adaptive mesh refinement algorithm, and the convergence rate with respect to degrees of freedom is optimal compare with a priori error estimates.
Original language | English |
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Pages (from-to) | A2087-A2119 |
Number of pages | 33 |
Journal | SIAM Journal on Scientific Computing |
Volume | 40 |
Issue number | 4 |
Early online date | 5 Jul 2018 |
DOIs | |
Publication status | Published - 2018 |
Keywords
- atomistic models
- coarse graining
- atomistic-to-continuum coupling
- adaptive algorithm
- a posteriori error estimate