Composite modeling for the effective elastic properties of semicrystalline polymers

Said Ahzi, Nadia Bahlouli, Ahmed Makradi, Salim Belouettar

Research output: Contribution to journalArticle

23 Citations (Scopus)


It is established that upper and lower bounds predict results far apart from each other for the effective elastic properties of semicrystalline polymers such as polyethylene. This is manly due to the high anisotropy of the elastic properties of the crystals. Composite modeling has been used to predict intermediate results between the bounds. Here, we show the details of composite modeling based on a two phase inclusion (crystalline lamella and amorphous domain) as the local representative element of a semicrystalline polymer. Three approaches, two composite bounds, and a composite self-consistent model, are used to compute the overall elastic properties. Details of the development of these approaches are given in this paper. We find good agreement between results from these approaches and experimental results for polyethylene.

Original languageEnglish
Pages (from-to)1-22
Number of pages22
JournalJournal of Mechanics of Materials and Structures
Issue number1
Publication statusPublished - 1 Jan 2007



  • Composite averaging schemes
  • Crystalline polymers
  • Effective elastic properties
  • Homogenization
  • Micromechanics

ASJC Scopus subject areas

  • Mechanics of Materials
  • Applied Mathematics

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