Fibers and Polymers

, Volume 4, Issue 2, pp 77–83 | Cite as

Constitutive equations based on cell modeling method for 3D circular braided glass fiber reinforced composites

  • Wonoh Lee
  • Ji Hoon Kim
  • Heon-Jung Shin
  • Kwansoo Chung
  • Tae Jin Kang
  • Jae Ryoun Youn
Article

Abstract

The cell modeling homogenization method to derive the constitutive equation considering the microstructures of the fiber reinforced composites has been previously developed for composites with simple microstructures such as 2D plane composites and 3D rectangular shaped composites. Here, the method has been further extended for 3D circular braided composites, utilizing B-spline curves to properly describe the more complex geometry of 3D braided composites. For verification purposes, the method has been applied for orthotropic elastic properties of the 3D circular braided glass fiber reinforced composite, in particular for the tensile property. Prepregs of the specimen have been fabricated using the 3D braiding machine through RTM (resin transfer molding) with epoxy as a matrix. Experimentally measured uniaxial tensile properties agreed well with predicted values obtained for two volume fractions.

Keywords

3D circular braided glass fiber reinforced composites Constitutive equations Cell modeling method Homogenization Multi-level meshing RTM (resin transfer molding) 

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Copyright information

© The Korean Fiber Society 2003

Authors and Affiliations

  • Wonoh Lee
    • 1
  • Ji Hoon Kim
    • 1
  • Heon-Jung Shin
    • 1
    • 2
  • Kwansoo Chung
    • 1
  • Tae Jin Kang
    • 1
  • Jae Ryoun Youn
    • 1
  1. 1.School of Materials Science and Engineering, Research Institute of Advanced MaterialsSeoul National UniversitySeoulKorea
  2. 2.LG Chem. Tech CenterDaejeonKorea

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