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Energy conservation of atomistic/continuum coupling
Author(s) -
Aubertin Pascal,
Réthoré Julien,
de Borst René
Publication year - 2009
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.2542
Subject(s) - spurious relationship , coupling (piping) , physics , statistical physics , representation (politics) , classical mechanics , computer science , theoretical physics , engineering , mechanical engineering , machine learning , politics , law , political science
The efficient and accurate coupling of two dissimilar domains presents a major challenge, especially when wave propagation is considered. Overlap coupling methods are promising in the sense that spurious wave reflections can be avoided and loss of energy due to the coupling scheme can be minimized. However, the conservation properties and the proper physical representation of the forces depend on the precise formulation of the algorithm for coupling such dissimilar models. This is unlike that of coupling similar domains. We will demonstrate this with the help of numerical studies in continuum‐to‐continuum coupling and continuum‐to‐discrete coupling. Copyright © 2009 John Wiley & Sons, Ltd.