Model rubber abrasion

A physical model of rubber abrasion in unsteady state and the corresponding processes of tongue ruptured are shown in Figures 2 and 3 respectively. As seen from Figure 3,... 

Several performance characteristics of rubber such as abrasion resistance, pendulum rebound, Mooney viscosity, modulus, Taber die swell, and rheological properties can be modeled by Eq 7.34. " A complex mathematical model, called links-nodes-blobs was also developed and experimentally tested to express the properties of a filled rubber network system. Blobs are the filler aggregates, nodes are crosslinks and links are interconnecting chains. The model not only allows for... 

Polybutadiene and natural rubber are blended in tire sidewalls to improve fatigue resistance, cut growth resistance, and improve abrasion resistance to minimize the effect of curb scuffing. Figure 4.7 shows atomic force micrographs (AFMs) of the model tire sidewall compound formulation given in Table 4.8. Many tire compounds are composed of two or more elastomer blends. Depending on the types of elastomers these blends may be ... 

Fillers have also been shown to influence abrasive wear of silicone rubbers. The wear rates increase slowly with flller concentration until a critical volume fraction is reached, after which wear rates increase significantly with increasing filler loading. A model, which included the stress concentration induced by the filler, showed a positive correlation between the wear rate and the damage zone volume (411). 

The exponent a varies from about 2 for natural rubber to 4 or more for non-crystallizing unfilled rubbers such as SBR . With the above model of the abrasion process the rate of abrasion A, in cm per revolution of the wheel, will therefore be given by... 

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