Predicting effective constitutive constants for woven-fibre composite materials

Resumo

A meso-scaled finite element model is developed aiming at the study the mechanical properties of woven-
fibre composites regarding different weave pattern. A Representative Volume Element (RVE) is constructed and

the Uniform Displacement Boundary Conditions (UDBC) are applied in order to obtain the stiffness tensor of

such composites. Two different types of woven-fibre composites are evaluated by the introduced model - E-
glass/Vinylester plain-weave and 2/2 Twill E-glass/Epoxy. The results from computational homogenization are

compared to both experimental and numerical works from literature, showing good agreement. It is verified that
the boundary conditions applied to the RVE play a significant role in the homogenization results.