American Journal of Mechanical and Materials Engineering

Volume 1, Issue 1, March 2017

  • Measurement of Acoustic Emission Signals Using Doppler Radar

    Sutorikhin Vladimir

    Issue: Volume 1, Issue 1, March 2017
    Pages: 1-4
    Received: 16 December 2016
    Accepted: 27 December 2016
    Published: 15 March 2017
    DOI: 10.11648/j.ajmme.20170101.11
    Abstract: Specialist nondestructive testing (NDT) know the method of acoustic emission. One of its advantages is high reliability of obtained results. Shows the sources of emissions do not doubt the presence of identified dangerous areas. The disadvantages of this method are the need for prior mechanical loading and the use of contact piezoelectric transduce... Show More
  • Development of a Temperature-Controlled Paddy Rice Parboiler

    Imonigie P. S., Yusuf K. A., Atanda E. O.

    Issue: Volume 1, Issue 1, March 2017
    Pages: 5-9
    Received: 31 January 2017
    Accepted: 28 February 2017
    Published: 24 March 2017
    DOI: 10.11648/j.ajmme.20170101.12
    Abstract: Parboiling is a major processing factor affecting the quality of milled rice. In this study, a paddy rice parboiler was designed, fabricated and its performance evaluated. During the design and fabrication, of the parboiler considerations were given to the cost of fabrication, simplicity of operation by the local farmers, portability and easy mecha... Show More
  • Minimization of Unconstrained Nonpolynomial Large-Scale Optimization Problems Using Conjugate Gradient Method Via Exact Line Search

    Adam Ajimoti, Onah David Ogwumu

    Issue: Volume 1, Issue 1, March 2017
    Pages: 10-14
    Received: 28 February 2017
    Accepted: 22 March 2017
    Published: 7 April 2017
    DOI: 10.11648/j.ajmme.20170101.13
    Abstract: The nonlinear conjugate gradient method is an effective iterative method for solving large-scale optimization problems using the iterative scheme x(k+1) = x(k) + αkd(k) where: x(k+1) is the new iterative point, x(k) is the current iterative point, αk is the step-size and d(k) is the descent direction. In this research work, we employed the techniqu... Show More
  • Research on Finite Element Simulation of Direct Redrawing Process of Extra Deep Drawing (EDD) Steel at Elevated Temperatures

    Kalavala Sai Kiran Reddy

    Issue: Volume 1, Issue 1, March 2017
    Pages: 15-19
    Received: 2 March 2017
    Accepted: 24 March 2017
    Published: 13 April 2017
    DOI: 10.11648/j.ajmme.20170101.14
    Abstract: In the previous studies of EDD steel for direct drawing and redrawing operations, dies were designed and developed. Deep drawing and redrawing experimentations were also performed for different size of blanks at various temperatures i.e. Room Temperature, 150 C, 300 C, 450 C on 1mm EDD steel sheets. Later on Material models were constructed in the ... Show More
  • Fabrication and Performance Test of Glass-Bamboo Fiber Based Industry Safety Helmet

    Md. Rafiquzzaman, Md. Taimum Islam, Md. Raihan Hossain, Md. Fazla Rabby, Md. Rifat Hashar

    Issue: Volume 1, Issue 1, March 2017
    Pages: 20-25
    Received: 1 March 2017
    Accepted: 28 March 2017
    Published: 15 April 2017
    DOI: 10.11648/j.ajmme.20170101.15
    Abstract: In this 21st century, the interest in using natural fibers as reinforcement in polymer composite material has increased significantly. Now this natural fiber based composite manufacturing has been a wide area of research and it is the most preferred choice for its superior properties like low density, stiffness, light weight and possesses better me... Show More