繰返し圧縮を受けるゴム球の温度変動に関する数値解析

抄録

Rubber materials subjected to cyclic deformation exhibit temperature variation due to the three effects of energetic elasticity, entropic elasticity, and viscous dissipation. There are many studies considering the temperature rise (heat build-up) due to the viscous dissipation effect. On the other hand, few studies consider the temperature variation due to the three effects simultaneously. In this study, the temperature variation of a rubber ball subjected to cyclic compression has been predicted by numerical analysis with considering the three effects simultaneously. The heat generation associated with each of the three effects is evaluated on the basis of the stress-strain analysis. Then the heat transfer analysis is conducted to obtain the temperature variation. The contribution of each of the three effects and the influences of heat conduction within the ball and heat convection to the surrounding air on the temperature variation are discussed.