Author

Abstract

This studying deals with the study of the effect of fiber volume fraction of the
carbon, glass and Kevlar fibers and their orientation on the properties of Hybrid
composite material. Different percentages of carbon, glass and Kevlar fibers were
used to reinforce the matrix material (unsaturated Polyester). The fibers arranged in
two methods according to the direction of the thermal flow. In the first method the
fibers were parallel to the direction of the thermal flow, while the second method was
perpendicular. The thermal conductivity measured by using Leeś disk. The
experimental and theoretical results proved that the value of the of thermal
conductivity increased with increasing the fiber volume fraction of the carbon
,Kevlar-49and glass and then reduced for Hybrid (H7and H8) for both arrangement
parallel and perpendicular because do not hah carbon fiber. The thermal conductivity
of parallel orientation had the highest value, while the carbon factor was the best. The
experimental results of thermal conductivity for parallel arrangement indicated that
the hybrid (H6) had maximum value 3.40 W/m.k and for perpendicular was 0.245
W/m.k for hybrid (H3).