Design and Development of Grip for Circular Test Piece Inuniversal Tensile Testing Machine

Ojo Jeremiah Akinribide, Adetunji Kolawole Ogunkoya, Itopa Monday Momoh, Olasupo Daniel Ogundare, Ba’aku Emmanuel AttahDaniel, Samuel Olugbenga Oloruntoba Olusunle

Engineering Materials Development Institute, Akure, Nigeria.

DOI: 10.4236/jmmce.2013.16050                

Abstract

The design and development of jaw grip for circular tensile test samples in a universal mechanical tester were undertaken in this work. In developing economies, the cost of acquiring laboratory testing equipment and accessories is huge, thereby depriving most of the supposedly advanced laboratories of most of this necessary research equipment. Where the equipment is available, they are either non-functional due to inadequate maintenance know-how or non-availability of necessary accessories. The developed grip in this work is part of an effort at providing accessories as their need arises. Advanced design and manufacturing tools were deployed to develop the jaw grip by using austenitic stainless steel. The developed jaw grip was used on the test equipment to conduct tensile tests on steel samples and the results were found to conform to international standard. Consequently, replacement of worn-out accessories has been carried out in resent time, which eventually saves idle time of equipment or otherwise importation for replacement.

Keywords

Mechanical Testing; Tensile Test; Jaw; Grip

Conflicts of Interest

The authors declare no conflicts of interest.

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