STRAIN-RATE AMPLIFICATION

抄録

The strain amplification is one of the recognized causes of the reinforcement of rubber by carbon black. We evaluated strain amplification in nonequilibrium, i.e., stress-strain measurements. Carbon-black-filled rubber compounds were used. In these examples, not only strain but also strain rate is amplified, since it is a dynamic situation. Because the behavior of the gum matrix is strain-rate dependent, strain-rate amplification is also an important aspect of the rubber compound behavior. We presented case studies of strain-rate amplification with several compounds involving variation of gum rubbers and carbon blacks.