Al-Qadisiyah Journal for Engineering Sciences

Abstract The aims of this study is to investigation the effect of reinforcing with hybrid fibers included natural palms fibers and carbon fibers on thermal behavior of araldite resin(AY103) . This resin was reinforced with natural palms fibers is studied and compared it with another material reinforced by carbon fibers(°0)with (1.75g/cm3) density ,and then these two types of fibers combined together in same matrix to make a hybrid composite material and also calculated the range of it's thermal conductivity coefficient .Fourier equation used to calculate the thermal conductivity coefficient(k) to obtained composite material and. the results obtained from thermal conductivity test show that the thermal conducting value of natural palms fibers higher than reinforcing with carbon and hybrid fibers .

Abstract The mechanical properties of araldite matrix composites incorporated with hybrid carbon - kevlar fibers were evaluated . There are indications that the incorporation of both fibers into a single matrix which is araldite resin will stabilize mechanical properties and lowering manufacturing costs . In this research the impact strength , tensile strength ,flexural strength ,and hardness were studied for composite material reinforced with hybrid fibers as a woven roving (°90-°0) with density (225g/cm3) and (285g/cm3) for carbon and kevlar fibers respectively . These fibers were mixed with araldite resin in different reinforcement percentage (20%,40%,60%) and the effect on the above mechanical properties were studied , where we see Improves in these mechanical properties after reinforcement by fibers The value of mechanical properties will increase with increasing percentage of reinforcement .