Piercing a liquid surface with an elastic rod: Buckling under capillary forces - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the Mechanics and Physics of Solids Année : 2007

Piercing a liquid surface with an elastic rod: Buckling under capillary forces

Résumé

When a thin elastic structure comes in contact with a liquid interface, capillary forces can be large enough to induce elastic deformations. This effect becomes particularly relevant at small scales where capillary forces are predominant, for example in microsystems (micro-electro-mechanical systems or microfluidic devices) under humid environments. In order to explore the interaction between capillarity and elasticity, we have developed a macroscopic model system in which an initially immersed vertical elastic rod is raised through a horizontal liquid surface. We follow a combined approach of experiments, theory and numerical simulations to study this system. In spite of its apparent simplicity, our experiment reveals a complex phase diagram, involving large hysteretic behaviour. We employ Kirchhoff equations for thin elastic rods and use path-following methods from which we obtain a variety of equilibrium states and associated transitions that are in excellent qualitative and quantitative agreement with those observed experimentally.
Fichier principal
Vignette du fichier
Neukirch2006.pdf (354.66 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04283735 , version 1 (09-12-2023)

Identifiants

Citer

Sébastien Neukirch, Benoît Roman, Benoît de Gaudemaris, José Bico. Piercing a liquid surface with an elastic rod: Buckling under capillary forces. Journal of the Mechanics and Physics of Solids, 2007, 55 (6), pp.1212-1235. ⟨10.1016/j.jmps.2006.11.009⟩. ⟨hal-04283735⟩
18 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More