Abstract
We consider the buckle-driven delamination of biaxially compressed thin films. Telephone-cord-like patterns observed in experiments are explained as a result of the buckling behavior of the film. We perform a stability analysis of a straight blister. A mechanism of instability causing undulations in an advancing finger of delamination is pointed out, which we claim to be the basic phenomenon explaining the zigzag pattern. We predict a transition to a varicose (unobserved as yet) pattern at low Poisson ratios.
| Original language | English |
|---|---|
| Pages (from-to) | 4124-4127 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 83 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 1 Jan 1999 |
| Externally published | Yes |