Analysis of the ductility on short fiber reinforced polypropylene plates

The incorporation of fibers improved the mechanical properties of the therm oplastic matrix and also modified impact and fracture behavior. An experime ntal study of dynamic fracture behavior of short fiber reinforced polypropy lene was carried out in an instrumented impact pendulum on notched izod spe cimens and the variation of the ductility in different points of a rectangu lar injected plate was studied. The different mechanisms of fracture were a nalyzed following the information given by force-time and energy-time curve s obtained from experiments performed on the neat matrix and on its glass f ibers composites.