English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Buckling induced by viscous flow changes the shape of sheet-like nanomaterialparticles suspended in liquids. This instability at the particle scale affectscollective behavior of suspension flows and has many technological andbiological implications. Here, we investigated the effect of viscoushydrodynamic interactions on the morphology of flexible sheets. By analyzing amodel experiment using thin sheets suspended in a shear cell, we found that apair of sheets can bend for a shear rate ten times lower than the bucklingthreshold defined for a single sheet. This effect is caused by a lateralhydrodynamic force that arises from the disturbance flow field induced by theneighboring sheet. The lateral hydrodynamic force removes the bucklinginstability but massively enhances the bending deformation. For smallseparations between sheets, lubrication forces prevail and prevent deformation.Those two opposing effects result in a non-monotonic relation between distancesand shear rate for bending. Our study suggests that the morphology ofsheet-like particles in suspensions is not purely a material property, but alsodepends on particle concentration and microstructure.

Hydrodynamic interactions change the buckling threshold of parallel flexible sheets in shear flow