Micromechanical modeling of 8-harness satin weave glass fiber-reinforced composites

R. S. Choudhry, Kamran A. Khan, Sohaib Z. Khan, Muhammad A. Khan, Abid Hassan

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

This study introduces a unit cell-based finite element micromechanical model that accounts for correct post cure fabric geometry, in situ material properties and void content within the composite to accurately predict the effective elastic orthotropic properties of 8-harness satin weave glass fiber-reinforced phenolic composites. The micromechanical model utilizes a correct post cure internal architecture of weave, which was obtained through X-ray microtomography tests. Moreover, it utilizes an analytical expression to update the input material properties to account for in situ effects of resin distribution within yarn (the yarn volume fraction) and void content on yarn and matrix properties. This is generally not considered in modeling approaches available in literature and in particular, it has not been demonstrated before for finite element micromechanics models of 8-harness satin weave composites. The unit cell method is used to obtain the effective responses by applying periodic boundary conditions. The outcome of the analysis based on the proposed model is validated through experiments. After validation, the micromechanical model was further utilized to predict the unknown effective properties of the same composite.

Original languageBritish English
Pages (from-to)705-720
Number of pages16
JournalJournal of Composite Materials
Volume51
Issue number5
DOIs
StatePublished - 1 Mar 2017

Keywords

  • 8-harness satin weave
  • finite element homogenization
  • Micromechanical model
  • textile composites
  • X-ray microtomography

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