Browsing by Author "Aweda, J. O."

Now showing 1 - 4 of 4
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    EFFECTS OF THERMAL TREATMENT PROCESSES (TTP) ON SOME OF THE MECHANICAL PROPERTIES OF WELDED 0.165% CARBON STEEL
    (Department of Production Engineering, Faculty of Technical Sciences, University of Novi Sad, Serbia Trg Dositeja Obradovica 6, 2017-04) Shuaib-Babata, Y. L.; Adewuyi, R. A.; Aweda, J. O.
    One of the major causes of structural failure in service is attributed to failure in its parts, especially at the welded joints. Engineers and other users of low carbon steel tend to find solution to this problem by considering the application of Post weld heat treatment (TTP).The Microstructure and mechanical properties of heat-treated and untreated welded low carbon steel samples were determined. Simulation of the specimens was also generated using Autodesk Inventor Simulation CFD 2015 Application Software. The CFD model (simulation) showed clearly the visual style wireframe and shaded mesh (XY, and XZ planes and the temperature profiles for different passes), which is a veritable tool to evaluate residual stress that is likely to happen in real welding process. The results also revealed that better quality mechanical behaviour of welded low carbon steel is elicited by post-weld normalizing and annealing TTP.
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    Industrial Safety
    (University of Ilorin Publishing House, 2017) Aweda, J. O.; Mahamood, R. M.; Abdulrahman, K. O.
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    Industrial Safety: In Engineering Workshop Technology
    (University of Ilorin Publishing House, 2017) Aweda, J. O.; Mahamood, R. M.; Abdulrahman, K. O.
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    Investigation of Thermal Insulation Properties of Biomass Composites
    (Faculty of Engineering, Universitas Indonesia Depok 16424, Indonesia, 2016) Abdulkareem, S; Ogunmodede, S; Aweda, J. O.; Abdulrahim, A. T; Ajiboye, T. K; Ahmed, I. I.; Adebisi, J. A.
    This paper reports on the investigation of thermal properties of Kapok, Coconut fibre and Sugarcane bagasse composite materials using molasses as a binder. The composite materials were moulded into 12 cylindrical samples using Kapok, Bagasse, Coconut fibre, Kapok and Bagasse in the ratios of (70:30; 50:50 and 30:70), Kapok and Coconut fibre in the ratios of (70:30; 50:50 and 30:70), as well as a combination of Kapok, Bagasse and Coconut fibre in ratios of (50:10:40; 50:40:10 and 50:30:20). The sample size is a 60mm diameter with 10mm – 22mm thickness compressed at a constant load of 180N using a Budenberg compression machine. Thermal conductivity and diffusivity tests were carried out using thermocouples and the results were read out on a Digital Multimeter MY64 (Model: MBEB094816), while a Digital fluke K/J thermocouple meter PRD-011 (S/NO 6835050) was used to obtain the temperature measurement for diffusivity. It was observed that of all the twelve samples moulded, Bagasse, Kapok plus Bagasse (50:50), Kapok plus Coconut fibre (50:50) and Kapok plus Bagasse plus Coconut fibre (50:40:10) has the lowest thermal conductivity of 0.0074, 0.0106, 0.0132, and 0.0127 W/(m-K) respectively and the highest thermal resistivity. In this regard, Bagasse has the lowest thermal conductivity followed by Kapok plus Bagasse (50:50), Kapok plus Bagasse plus Coconut fibre (50:40:10) and Kapok plus Coconut fibre (50:50).