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  • Title: Oscillatory instability in slow crack propagation in rubber under large deformation.
    Author: Endo D, Sato K, Hayakawa Y.
    Journal: Phys Rev E Stat Nonlin Soft Matter Phys; 2012 Jul; 86(1 Pt 2):016106. PubMed ID: 23005490.
    Abstract:
    We performed experiments to investigate slow fracture in thin rubber films under uniaxial tension using high-viscosity oils. In this system we observed an oscillating instability in slowly propagating cracks for small applied strains. The transition between oscillatory and straight patterns occurred near the characteristic strain at which rubber exhibits a nonlinear stress-strain relation. This suggests that nonlinear elasticity plays an important role in the formation of the observed pattern. This was confirmed by numerical simulation for neo-Hookean and linear elasticity models.
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