Nonlocal damage modelling in clay/epoxy nanocomposites using a multiscale approach
Author | Silani, Mohammad |
Author | Talebi, Hossein |
Author | Hamouda, Abdel Magid |
Author | Rabczuk, Timon |
Available date | 2021-09-01T10:03:26Z |
Publication Date | 2016 |
Publication Name | Journal of Computational Science |
Resource | Scopus |
Abstract | This 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. |
Sponsor | The 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 . |
Language | en |
Publisher | Elsevier |
Subject | Dynamic 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 |
Type | Article |
Pagination | 18-23 |
Volume Number | 15 |
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Mechanical & Industrial Engineering [1343 items ]