School of Mechanical and Industrial Engineering

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Browsing School of Mechanical and Industrial Engineering by Author "Abebayehu Mulugeta"

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    Development And Characterization of Mechanical Properties of Al6063 Alloy Reinforced Fly Ash And E-Glass Fiber Composite
    (Addis Ababa University, 2021-07) Abebayehu Mulugeta; Mesfin Gizaw (PhD); Gezae Abera (Mr.) Co-Advisor
    Currently, one of the key concerns in automotive engineering is the weight minimization of a part without any reduction in load carrying capacity and stiffness. The present investigation deals with investigating the hardness, compression, and flexural properties of Al6063/ E-glass fiber/ Fly ash Composite as a possible replacement to the existing steel outer door panel of the Toyota Hiace four-wheel vehicle. In this study ten composite specimens were prepared as per ASTM standards size by machining operations to conduct flexural, hardness, and compression tests. Comparing the ten composites the result showed the composite with 7% of E-Glass fiber/ 6% fly ash had the maximum mechanical property of hardness and compression strength with the value of 116.73HRB and 850.31MPa respectively. And maximum flexural strength was found with composite 5% of E-Glass fiber/ 9% fly ash with the value of 340.1MPa. In this study, a volume fraction of 5% E-Glass fiber with 9% Fly ash was selected as a composite for the outer door panel because for all mechanical properties listed above it shows a better result. Then this paper effort to attain, designing less deformed and stressed than that of the existing Toyota Hiace vehicle steel outer door panel. The solid modeling of the outer door panel was done on SOLIDWORK 2017 and analyzed using ANSYSR18.1 workbench software. From transient structural analysis, it is seen that weight reduction of the outer door panel is obtained up 66.24% in the case of the composite than structural steel, and the equivalent stress-induced and deformation in the Al6063/E-Glass fiber/ fly ash composite outer door panel is 66.24 % and 26.3 % respectively less than the current steel outer door panel. Lastly, based on this result, the study concludes that the recently designed Al6063/E-Glass Fiber/ Fly ash composite outer door panel has a better presentation than that of the conventional steel outer door panel of the Toyota Hiace Van vehicle.