University of Al-Qadisiyah Al-Qadisiyah Journal for Engineering Sciences 1998-4456 15 2 2022 06 25 Influence of heat aging on tensile test in rubber-epoxy composites 131 134 179072 10.30772/qjes.v15i2.824 EN Hadeel A. Alobaidi Department of Mechanical Engineering, College of Engineering, University of Al-Qadisiyah, Iraq Nabeel Almuramady Department of Mechanical Engineering, College of Engineering, University of Al-Qadisiyah, Iraq Journal Article 2022 04 13 Composite materials using natural rubber as the main matrix are popular these days because of the wide applications of rubber materials in modern industries. Rubber materials also have damping properties, energy absorption, and exposure to continuous loads and different environmental conditions. In this research, the effect of temperatures on the rubber-epoxy composite with different ratios (0%, 10%, 20%, 30%, 40%, and 50%) of epoxy has been studied. Where comparison was made between heat-aged and un-aged samples using the tensile test. To know the effect of high temperatures on the rubber-epoxy composite, it was done in a heated oven at a temperature of 70^◦C. The results obtained from the tensile test observed a decrease in tensile strength and elongation when exposed to thermal aging. https://qjes.qu.edu.iq/article_179072_ce6db7cb1d113b0d3cd2dd3632b24e6e.pdf