Engineering Mechanics

Proceedings Vol. 7 (2001)

INŽENÝRSKÁ MECHANIKA 2001

ENGINEERING MECHANICS 2001

Copyright © 2001 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague

 

Wierer M., Šejnoha J., Šejnoha M.
pages 293 - +8p, full text

The stepping stone in evaluating effective elastic properties of woven composite tubes is an accurate geometrical description of the composite tube on mesa-scale taking the real geometry of the fiber-tow into account. The relevant geometrical parameters gained from images of real microstructure are provided by a powerful image analyzer Lucie. Furthermore, the periodic character of a fiber-tows arrangement, typical fOT woven composites, reduces the basic geometrical model to a certain periodic unit cell. Two specific unit cells linked to two different homogenization approaches are introduced. When subjected to suitable periodic boundary conditions, the homogenized unit cells can be periodically extended to map the effective elastic properties over the macroscopic domain under consideration.

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