4 research outputs found
Coupling of injection molding process to mechanical properties of short fiber composites: A through process modeling approach
Mechanical properties of glass fibre reinforced polypropylene disks produced by rotating, expansion and compression injection moulding
A special mould (RCEM, rotation, compression
and expansion mould) intended for inducing
complex stress fields during the filling stage of injection
moulding was used to manipulate the microstructure of
a short fibre reinforced polypropylene. Centred gated
discs were injection moulded with different filling
sequences (stationary, expansion, compression,
expansion with continuous rotation and compression
with continuous rotation). The mechanical behaviour
of the mouldings was characterized in tensile and
flexural loadings on specimens cut at different locations
along the flow length. Complete discs were also
tested in 4-point support flexural test at low velocity
and at impact. The respective results are analysed and
discussed in terms of the developed fibre orientation
morphology