We formulate an atomistic-to-continuum coupling method based on blending atomistic and continuum forces. Our precise choice of blending mechanism is informed by theoretical predictions. We present a range of numerical experiments studying the accuracy of the scheme, focusing in particular on its stability. These experiments confirm and extend the theoretical predictions, and demonstrate a superior accuracy of B-QCF over energy-based blending schemes.
|Original language||English (US)|
|Number of pages||19|
|Journal||Computer Methods in Applied Mechanics and Engineering|
|State||Published - Jan 1 2014|
- Atomistic to continuum
- Embedded atom model
- Error analysis