Evaluation of capillary-induced deformation of thin plates due to liquid column formation
2013
Deformation induced by capillarity is quantitatively evaluated in this study. A pair of polymer plates, fixed at one end and immersed in liquid, bends because of capillary forces from a liquid column formed between the plates. Bending proceeds to either contact or collapse the plates if their gap spacing becomes smaller than 2/3 of the initial plate separation, regardless of plate dimensions. This phenomenon is theoretically validated by proposing a dimensionless number, which is derived from a balance of surface energy, potential energy of a liquid, and strain energy of a plate.
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