384 citations
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7 papers · 1 filter
Self-induced marginality in plastically deformed crystals
Oguz Umut Salman, Aylin Ahadi, Lev Truskinovsky
Quasi-brittle plastic yielding is a salient feature of well-annealed glassy materials. Here we show that the same behavior is characteristic of perfect crystals after they experien…
Homogeneous nucleation of dislocations as a pattern formation phenomenon
R. Baggio, O. U. Salman, L. Truskinovsky
Dislocation nucleation in homogeneous crystals initially unfolds as a linear symmetry-breaking elastic instability. In the absence of explicit nucleation centers, such instability…
Relevance of Shear Transformations in the Relaxation of Supercooled Liquids
Matthias Lerbinger, Armand Barbot, Damien Vandembroucq +1
While deeply supercooled liquids exhibit divergent viscosity and increasingly heterogeneous dynamics as the temperature drops, their structure shows only seemingly marginal changes…
The mechanical response of a creased sheet
Frederic Lechenault, Benjamin Thiria, Mokhtar Adda-Bedia
We investigate the mechanics of thin sheets decorated by non-interacting creases. The system considered here consists in parallel folds connected by elastic panels. We show that th…
Micro-Brillouin spectroscopy mapping of the residual density field induced by Vickers indentation in a soda-lime silicate glass
H. Tran, S. Clément, R. Vialla +2
High-resolution Brillouin scattering is used to achieve 3-dimensional maps of the longitudinal acoustic mode frequency shift in soda-lime silicate glasses subject to Vickers indent…
Wrinkling hierarchy in constrained thin sheets from suspended graphene to curtains
Hugues Vandeparre, Miguel Pineirua, Fabian Brau +7
We show that thin sheets under boundary confinement spontaneously generate a universal self-similar hierarchy of wrinkles. From simple geometry arguments and energy scalings, we de…