Journal
SOFT MATTER
Volume 9, Issue 34, Pages 8282-8288Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3sm50564b
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Funding
- Conicyt
- Scat project [II-0537-FC-FA]
- Anillo Act 95
- Fondecyt [1095112, 1110584]
- CNRS-Conicyt [107]
- ECOS/CONICYT [C12E07]
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Controlling the fracture propagation in a film is an important element in the design of better packaging seals that must resist handling and yet provide a tearing mechanism for easy opening. Here we show that under simple initial setup conditions a divergent tear can be obtained that follows the path of a logarithmic spiral over two decades in length scale. We study the general rules leading to the spiral growth of a tear and connect its geometry to the specific material properties of the film.
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