Understanding the transitions in the abrasion behavior of tires
Styrene-butadiene rubber (SBR) tire tread compounds varied by carbon black loading and cross-link density have been tested to evaluate their performance. This study presents an evaluation of the friction and wear properties using a uni-directional dynamic loading sequence, whereby a single tread block undergoes deformation in periodic intervals. Testing was conducted under different loading and temperature conditions. Transitions between abrasive and smear wear mechanisms are observed through the evolution of the friction and surface morphology. Optical microscopy techniques are used in the post-test phase to showcase how the fracture and friction of the compound evolve over time.