Velocity Jumps in Crack Propagation in Elastomers: Relevance of a Recent Model to Experiments

摘要

Recently, an exactly solvable model was proposed for linear viscoelastic sheets to explain a sharp jump in the plot of the crack-propagation velocity as a function of the applied displacement. Such a jump has been established in experiments. Here, we compare this model with experiments to demonstrate its relevance, thereby emphasizing the importance of the microscopic cutoff length scale in the original theory.