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AuthorSilani, Mohammad
AuthorTalebi, Hossein
AuthorHamouda, Abdel Magid
AuthorRabczuk, Timon
Available date2021-09-01T10:03:26Z
Publication Date2016
Publication NameJournal of Computational Science
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.jocs.2015.11.007
URIhttp://hdl.handle.net/10576/22437
AbstractThis study proposed a concurrent multiscale method to model damage in clay/epoxy nanocomposites. The method uses a nonlocal damage formulation to regularize the damage model. The multiscale method used, is based on the Arlequin method which couples two overlapping scales using the Lagrange multipliers method. Since the method blends the energies of two scales in a so called "handshake domain", the spurious wave reflection from the coupling region is minimum. Hence the method is appropriate for the current dynamic problem. To show the suitability and accuracy of the proposed method, a clay/epoxy nanocomposite beam under dynamic loading is simulated using two different approaches: a full fine scale model and a multiscale model were employed. Also, a comparison between the results proves that the proposed nonlocal multiscale method can accurately predict the damage phenomena inside the clay/epoxy nanocomposites with minimal computational costs. The method presented here is also applicable to a range of related physical problems. 2015 Elsevier B.V.
SponsorThe authors would like to acknowledge the support from DFG , Humboldt Foundation and Qatar National Research Fund (QNRF), through Grant No. NPRP 09-145-2-061 .
Languageen
PublisherElsevier
SubjectDynamic loads
Lagrange multipliers
Numerical models
Arlequin method
Computational costs
Dynamic loadings
Lagrange multipliers method
Multi-scale approaches
Multi-scale Modeling
Multiscale
Non-local damage
Nanocomposites
TitleNonlocal damage modelling in clay/epoxy nanocomposites using a multiscale approach
TypeArticle
Pagination18-23
Volume Number15
dc.accessType Abstract Only


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