Stochastic modelling of clay/epoxy nanocomposites

Mohammad Silani, Hossein Talebi, Saeed Ziaei-Rad, Pierre Kerfriden, Stéphane P.A. Bordas, Timon Rabczuk

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


This paper presents a numerical investigation of the mechanical properties of exfoliated clay/epoxy nanocomposites. The large scatter in the material properties and distribution of the inclusions and matrix is taken into account by introducing an appropriate stochastic damage modelling at the nano-scale. Then, the overall properties of the nanocomposite are upscaled using computational homogenisation. Two mechanical properties are investigated: the random distribution of the homogenised Young's modulus and the overall loss of stiffness observed in the case of extreme loading. The results obtained in the former case are in good agreement with experimental results from the literature. In the second case, we show that exfoliation does not significantly affect the overall strength of the nanocomposite.

Original languageEnglish
Pages (from-to)241-249
Number of pages9
JournalComposite Structures
Publication statusPublished - 2014 Dec 1
Externally publishedYes

Bibliographical note

Funding Information:
The authors thank the support of the International Research Staff Exchange Scheme (IRSES) – Marie Curie and German Research Foundation (DFG). Pierre Kerfriden would also like to acknowledge the partial support of EPSRC under grant “Towards rationalised computational expense for simulating fracture over multiple scales (RationalMSFrac)”.

Publisher Copyright:
© 2014 Elsevier Ltd.


  • Micromechanics
  • Nanocomposites
  • Stochastic methods

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering


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