Temperature Variation of Rubber Dumbbell Specimen under Cyclic Tension

Abstract

Thermoelastic stress analysis is a non-contact measurement method that can evaluate the stress distribution on the surface of objects. However, it does not work well for rubbers because not only the thermoelastic effect but also the entropic effect and the viscous dissipation effect influence the temperature variation. This study focuses on determining the quantitative relationship between the temperature variation and these three effects of rubber dumbbell specimen subjected to cyclic tension. A thermo-mechanical model was utilized to simulate the temperature variation under different loading conditions, and the simulation result was compared to the experimental result obtained from the thermographic measurement.