The Tensile and Fatigue Properties of Vulcanized Natural Rubber Under Ambiant Temperatures

Hussain J. M. Alalkawi; Zainab K.  Hantoosh; Raad H. Majid

doi:10.24237/djes.2010.03202

Authors

Hussain J. M. Alalkawi Department of Electromechanical Engineering, University of Technology, Baghdad, Iraq.
Zainab K. Hantoosh Department of Electromechanical Engineering, University of Technology, Baghdad, Iraq.
Raad H. Majid Department of Electromechanical Engineering, University of Technology, Baghdad, Iraq.

Keywords:

Rubber component, Fatigue life prediction, Fatigue test, Different temperatures

Abstract

A design of rubber components against fatigue failure is one of the critical issues to prevent the failures during the operation. Therefore; fatigue life prediction was the key technologies to assure the safety reliability of mechanical rubber. In present study, mechanical properties of natural rubber and fatigue life (constant amplitude stresses) were carried out experimentally at room temperature and 40 ^oC. The mechanical properties and constant fatigue life were compared with previous study. Tensile and Fatigue life tests were performed using Dumb-bell specimens. The experimental mechanical properties and fatigue life of natural rubber component agreed fairly with the published data of previous study above. While the mechanical properties and fatigue lives at 40 ^oC were decreased with about 33% of tensile properties at 0.2 strain and about 99% fatigue properties at 5x10⁶ cycles compared with room temperature.

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