par Brau, Fabian 
Référence Physical review. E, Statistical, nonlinear, and soft matter physics, 90, 6, 062406
Publication Publié, 2014-12-29
Référence Physical review. E, Statistical, nonlinear, and soft matter physics, 90, 6, 062406
Publication Publié, 2014-12-29
Article révisé par les pairs
| Résumé : | We study the interaction between two cracks propagating quasistatically during the tearing of a thin brittle sheet. We show that the cracks attract each other following a path described by a power law resulting from the competition between elastic and fracture energies. The power law exponent (8/11) is in close agreement with experiments. We also show that a second (asymptotic) regime, with an exponent of 9/8, emerges for small distances between the two crack tips due to the finite transverse curvature of the elastic ridge joining them. |
