الخلاصة

In this research work a hybrid composite material have been prepared contains one matrix which is unsaturated polyester resin(UNPE) and fabricated fibers, a hybrid composite materials that were prepared are: A hybrid composite material consists of unsaturated polyester resin(UP) as a matrix reinforced with two different fabricated fibers(EF(W.R) +KF(W.R))(H1). A hybrid composite material consists of unsaturated polyester resin(UP) as a matrix reinforced with two different fabricated fibers(EF(W.R) +CF(W.R))(H2). A hybrid composite material consists of unsaturated polyester resin(UP) as a matrix reinforced with three different fabricated fibers(EF(W.R)+CF(W.R)+KF(W.R)). The volume fraction for all hybrid composite material is 30%. All samples related to mechanical tests were prepared by hand layup process in preparation the hybrid molds. A mechanical tests (impact) were done for the three samples. The results were compared among each other. Also, the effect of the exposure time of the ultraviolet(uv)on impact strength were studied for the above samples. The results shows that as the exposure time increases the impact strength decreases for all prepared samples.