Abstract
When a wetting liquid wicks into a fibrous material, it causes the material to deform. In this paper we discuss the elasto-capillary effect that leads to spontaneous internal stresses in the materials. The elasto-capillary effect produced by menisci in pores can be identified through a specific stress distribution in the fibrous matrix. We show that the classical Bernoulli problem of a freely hanging fabric can be used for the analysis of gravity-induced stresses in textile materials. These stresses change due to elasto-capillary effect. Wicking of a wetting liquid into a freely suspended fibrous material is shown to be an instructive nontrivial experiment illustrating interesting distinguishable stress distributions in the fibrous matrix.
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