NUMERICAL AND EXPERIMENTAL STUDY OF BENDING AND TENSILE BEHAVIOR FOR THEALUMINUM –SILICON COMPOSITE BEAM REINFORCED BY ALUMINA

Abstract

This research includes experimental and numerical analysis using finiteelement method by ANSYS11 package to study effect of reinforcement of Aluminum–Silicon with ceramic particles (Alumina) for different beam width (12, 14 and16mm) on the hardiness and bending properties. The composite material is produced using the vortex technique by cutting the base alloy to small pieces and put inside steel crucible. Put the steel crucible inside gas furnace in temperature (700oC). The electrical mixer used to vortex the mixtureand adding the aluminum oxide particles (Alumina) (5% and 10%) and after thatpouring the melting in metallic mold. The results of the study showed that Vickers micro hardness increased from(HV=105) for pure Aluminum –Silicon alloy to (HV=127) with (10%) Alumina, alsothe tensile strength increased from (95 Mpa) to (135 Mpa). The maximum flexuralstrength was (451 MPa) and the maximum shear stress was (33 MPa) at (width=16mm) with volume fraction (10 %) of Alumina. the maximum strain decrease withincrease volume fraction of Alumina. The experimental and finite element resultsobtained are approximately agreement.