Elastocapillary instability under partial wetting conditions: bending versus buckling

Details Elastocapillary instability under partial wetting conditions: bending versus buckling Elastocapillary instability under partial wetting conditions: bending versus buckling

2011-09-15

arxiv.org/abs/1109.3414v1

Physics

Fluid Dynamics

12 pages, 13 figures

Scientific paper

The elastocapillary instability of a flexible plate plunged in a liquid bath is analysed theoretically. We show that the plate can bend due to two separate destabilizing mechanisms, when the liquid is partially wetting the solid. For contact angles $\theta_e > \pi/2$, the capillary forces acting tangential to the surface are compressing the plate and can induce a classical buckling instability. However, a second mechanism appears due to capillary forces normal to surface. These induce a destabilizing torque that tends to bend the plate for any value of the contact angle $\theta_e > 0$. We denote these mechanisms as "buckling" and "bending" respectively and identify the two corresponding dimensionless parameters that govern the elastocapillary stability. The onset of instability is determined analytically and the different bifurcation scenarios are worked out for experimentally relevant conditions.

Affiliated with

Also associated with

No associations

Rating

Elastocapillary instability under partial wetting conditions: bending versus buckling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Elastocapillary instability under partial wetting conditions: bending versus buckling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastocapillary instability under partial wetting conditions: bending versus buckling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-673768