NÓBREGA, M. M. S.; http://lattes.cnpq.br/3535174221222298; NÓBREGA, Múcio Marcos Silva.
Résumé:
In this work the mechanical properties of unsaturated polyester composites
reinforced by a hybrid jute/glass woven cloth were determined as a function of
fiber content and cloth orientation. The hybrid cloth had jute fibers (44 wt%) on the
warp and glass fibers (56 wt%) on the weft directions.
Composites reinforced by up to 6 layers of hybrid cloth were produced and
their mechanical properties determined as a function of fiber content and
orientation. The composites were tested along the warp (jute) and the weft (glass)
directions. Composites having 2, 4 and 6 layers of hybrid cloth disposed in 0/90°
stacking sequences were also produced and their tensile properties were
determined as a function of fiber content. The mechanical properties of
unsaturated polyester composites reinforced by up to 6 layers of glass cloths were
also determined.
As expected, the results showed that the mechanical properties of every
composite under investigation increased with the overall fiber content. Composites
reinforced by hybrid cloths, when tested along the glass direction, showed higher
mechanical properties than when tested along the jute fiber direction which was
attributed to the properties of the individual components of the cloth and also to
the fact that the jute fibers were on the warp direction. The composites reinforced
by hybrid cloths disposed in 0/90° stacking sequences exhibited intermediate
properties when compared with equivalent composites tested along the glass or
the jute fiber directions. Higher overall mechanical properties were obtained for
the composites reinforced by the glass fiber cloths.
