The stiffness has been measured for both specimens moulded with or without flow during compression. The result shows that flow has a significant effect on fibre orientation which in turn has a great effect on the mechanical properties. The fibre content seems to be more or less unaffected by the flow for the tested geometry. Paper II deals with another typical problem during GMT processing which is the presence of voids. To examine the effect voids on properties, materials with different void contents have been moulded.
Cracks propagate in the same manner in void rich as in void free materials.