American Journal of Mechanical and Materials Engineering

Volume 4, Issue 3, September 2020

  • Investigating the Effects of Welding Processes on Tensile Stress and Strain Properties of Welded Mild Steel Plates Using Statistical Analysis

    Oladebeye Dayo Hephzibah, Adejuyigbe Samuel Babatope, Olorunnishola Akim Abayomi Gideon

    Issue: Volume 4, Issue 3, September 2020
    Pages: 43-47
    Received: 26 June 2020
    Accepted: 13 July 2020
    Published: 28 July 2020
    Abstract: As test samples, mild steel plates with thicknesses of 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, and 1.0 mm were made. After welding these test samples underwent Tensile Stress and strain tests with the Built Welding Robot and Manual Electric Arc Welding Machine. Both data collected from tensile stress and tensile stress were analyzed and the data pr... Show More
  • Effects of Rotating Shaft Misalignment on Bearing Life and Lubricant Failure

    Anthony Simons, Henry Otoo, Solomon Nunoo, Ernest Ababio, Cyrus Addy

    Issue: Volume 4, Issue 3, September 2020
    Pages: 48-53
    Received: 22 April 2020
    Accepted: 30 June 2020
    Published: 18 August 2020
    Abstract: This study looks at plant and machinery at West African Mills Company Limited (WAMCO), with the view to identify sections within the factories with high cost of maintenance and provide a solution to reduce operating costs. Records of breakdowns at various sections of the plant were analysed and the first stage milling section at WAMCO II was found ... Show More
  • Influence of Loading Speed on Acoustic Emission During Destruction of a Composite by Von Mises Criterion

    Sergii Filonenko, Viacheslav Stadychenko

    Issue: Volume 4, Issue 3, September 2020
    Pages: 54-59
    Received: 12 March 2020
    Accepted: 14 April 2020
    Published: 31 August 2020
    Abstract: In this study of the composite material’s destruction caused by transverse force with the use of von Mises criterion, the simulation outcomes of the composite material’s cells destruction process and generated AE signals with increasing the strain rate is considered. The time dependencies of the change in the number of remaining elements and the ge... Show More
  • Thermo-Structural Analysis of Carbon Fibre-Ni Based Super Alloy Composite Employed in Gas Turbines

    Ankit Dhoka

    Issue: Volume 4, Issue 3, September 2020
    Pages: 60-65
    Received: 2 August 2020
    Accepted: 27 August 2020
    Published: 7 September 2020
    Abstract: A computational analysis was carried out on two different materials of turbine blades, namely Inconel MA754 and Nimonic 80A, in order to determine their structural and thermal properties at elevated temperatures. Long carbon fibers of uniform length were used and deposited at varying thicknesses ranging from 1 mm to 4 mm, on the top surface of turb... Show More
  • Effect of Inhibitor Concentration and Immersion Time on the Corrosion Rate and Inhibition Efficiency of AISI 1019 Steel in Inhibited Seawater Environment

    Emmanuel Iyeni, Cornelius Oghenetega Obemure

    Issue: Volume 4, Issue 3, September 2020
    Pages: 66-80
    Received: 19 January 2020
    Accepted: 17 September 2020
    Published: 25 September 2020
    Abstract: The effect of inhibitor concentration and immersion time on the corrosion rate and inhibition efficiency of AISI 1019 steel in seawater environment were investigated by means of weight loss measurement (WLM) at an interval of 6days for a period of 60 days. AISI 1019 steel were immersed in seawater solution in the absence and presence of varying inh... Show More