Collaborative Oscillatory Fracture - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2020

Collaborative Oscillatory Fracture

Résumé

We report a new oscillatory propagation of cracks in thin films where three cracks interact mediated by two delamination fronts. Experimental observations indicate that delamination fronts joining the middlecrack to the lateral crack tips swap contact periodically with the crack tip of the middle crack. A model based on a variational approach analytically predicts the condition of propagation and geometrical featuresof three parallel cracks. The stability conditions and oscillating propagation are found numerically and the predictions are in favorable agreement with experiments. We found that the physical mechanism selecting the wavelength structure is a relaxation process in which the middle crack produces a regular oscillatory path
Fichier principal
Vignette du fichier
Fuentealba20.pdf (755.24 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02973911 , version 1 (21-10-2020)

Identifiants

Citer

Juan-Francisco Fuentealba, Joel Marthelot, Benoit Roman, Francisco Melo. Collaborative Oscillatory Fracture. Physical Review Letters, 2020, ⟨10.1103/PhysRevLett.124.174102⟩. ⟨hal-02973911⟩
120 Consultations
124 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More