Development of O-ring jig for mechanical testing

Geris, Brynald (2022) Development of O-ring jig for mechanical testing. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

O-ring is an important component used in fuel delivery systems (FDS). O-rings are often used on the valve stem of a car engines to keep oil from getting into the combustion chamber. Biodiesel can cause deterioration and swelling of the O-ring as its material is elastomer. In addition, the performance of the O-ring will be affected due to the interaction with biodiesel. Therefore, mechanical test need to be done for O-ring immersed in biodiesel before conducting the tensile test. Tensile test is one of the most typical testing to obtain tensile stress, tensile strain and young modulus. These data are important to predict the life cycle of the O-ring contacted with biodiesel. In this study, jig for tensile test of O-ring was develop. As for this custom jig that was design and been fabricate, this jig can be install to universal testing machine, INSTRON 5585. Thus, it could cut cost from buying a new machine which is specific for O-ring tensile experiment. Therefore, as for the result, the experiment will conduct the dry run test of tensile test, and the results obtain is to analyze the graph pattern and the range of tensile stress value by doing the comparison between theoretical and experimental data.

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