TY - JOUR
T1 - Computational modeling of elastic properties of carbon nanotube/polymer composites with interphase regions. Part II: Mechanical modeling
AU - Han, Fei
AU - Azdoud, Yan
AU - Lubineau, Gilles
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2014/1
Y1 - 2014/1
N2 - We present two modeling approaches for predicting the macroscopic elastic properties of carbon nanotubes/polymer composites with thick interphase regions at the nanotube/matrix frontier. The first model is based on local continuum mechanics; the second one is based on hybrid local/non-local continuum mechanics. The key computational issues, including the peculiar homogenization technique and treatment of periodical boundary conditions in the non-local continuum model, are clarified. Both models are implemented through a three-dimensional geometric representation of the carbon nanotubes network, which has been detailed in Part I. Numerical results are shown and compared for both models in order to test convergence and sensitivity toward input parameters. It is found that both approaches provide similar results in terms of homogenized quantities but locally can lead to very different microscopic fields. © 2013 Elsevier B.V. All rights reserved.
AB - We present two modeling approaches for predicting the macroscopic elastic properties of carbon nanotubes/polymer composites with thick interphase regions at the nanotube/matrix frontier. The first model is based on local continuum mechanics; the second one is based on hybrid local/non-local continuum mechanics. The key computational issues, including the peculiar homogenization technique and treatment of periodical boundary conditions in the non-local continuum model, are clarified. Both models are implemented through a three-dimensional geometric representation of the carbon nanotubes network, which has been detailed in Part I. Numerical results are shown and compared for both models in order to test convergence and sensitivity toward input parameters. It is found that both approaches provide similar results in terms of homogenized quantities but locally can lead to very different microscopic fields. © 2013 Elsevier B.V. All rights reserved.
UR - http://hdl.handle.net/10754/563296
UR - https://linkinghub.elsevier.com/retrieve/pii/S0927025613004084
UR - http://www.scopus.com/inward/record.url?scp=84888293839&partnerID=8YFLogxK
U2 - 10.1016/j.commatsci.2013.07.008
DO - 10.1016/j.commatsci.2013.07.008
M3 - Article
SN - 0927-0256
VL - 81
SP - 652
EP - 661
JO - Computational Materials Science
JF - Computational Materials Science
ER -