Naslov
Nano-submodelling technique based on overlapping domain decomposition method

Autori
Marenić, Eduard ; Sorić, Jurica ; Tonković, Zdenko

Izvornik
Transactions of FAMENA (1333-1124) 36 (2012); 1-12

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
molecular mechanics; multiscale; ghost forces; atomistic-to-continuum coupling; bridging domain method

Sažetak
A multiscale method that couples atomistic with continuum model is presented. Nanosubmodeling (nSM) is an approach that enables insertion of nano-refined submodel (atomistic) in the global model (continuum). The applied concurrent atomistic-to-continuum coupling of the two models is based on the overlapping domain decomposition scheme called bridging domain method or similar Arlequin method. Different models are overlapped and the displacement compatibility is enforced via Lagrange multipliers. In this work analysis of the spurious effects that may arise in and near the coupling domain is performed. Some coupling options such as energy weighting, coupling zone geometry and Lagrange multiplier field interpolation are tested.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA