ONO-DIT-BIOT, Jean-Christophe; SOULARD, Pierre; BARKLEY, Solomon; WEEKS, Eric; SALEZ, Thomas; RAPHAËL, Élie; DALNOKI-VERESS, Kari

doi:10.1039/cXsm00000x/

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ONO-DIT-BIOT, Jean-Christophe
McMaster University [Hamilton, Ontario]

SOULARD, Pierre
Gulliver (UMR 7083)

BARKLEY, Solomon
McMaster University [Hamilton, Ontario]

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Soft Matter. 2021, vol. 17, p. 1194

Royal Society of Chemistry

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We investigate the elastic and yielding properties of two dimensional defect-free mono-crystals made of highly monodisperse droplets. Crystals are compressed between two parallel boundaries of which one acts as a force sensor. As the available space between boundaries is reduced, the crystal goes through successive row-reduction transitions. For small compression forces, the crystal responds elastically until a critical force is reached and the assembly fractures in a single catastrophic global event. Correspondingly there is a peak in the force measurement associated with each row-reduction. The elastic properties of ideal mono-crystal samples are fully captured by a simple analytical model consisting of an assembly of individual capillary springs. The yielding properties of the crystal are captured with a minimal bond breaking model.< Réduire

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Mechanical properties of 2D aggregates of oil droplets as model mono-crystals

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