Development and geometry of isotropic and directional shrinkage-crack patterns.
Reads0
Chats0
TLDR
There is some evidence of a gradual increase in disorder as the drying layer become thinner, but no sudden transition, in contrast to what has been seen in previous experiments.Abstract:
We have studied shrinkage-crack patterns which form when a thin layer of an alumina/water slurry dries. Both isotropic and directional drying were studied. The dynamics of the pattern formation process and the geometric properties of the isotropic crack patterns are similar to what is expected from recent models, assuming weak disorder. There is some evidence of a gradual increase in disorder as the drying layer become thinner, but no sudden transition, in contrast to what has been seen in previous experiments. The morphology of the crack patterns is influenced by drying gradients and front propagation effects, with sharp gradients having a strong orienting and ordering effect.read more
Citations
More filters
Journal ArticleDOI
Drying of thin colloidal films.
TL;DR: The reasons for cracking in thin films is explored as well as various methods to minimize its effect, including the physical reason for enhanced evaporation at the edge of droplets.
Journal ArticleDOI
Hygromorphs: from pine cones to biomimetic bilayers
TL;DR: It is shown how simple bilayer hygromorphs of paper and polymer show similar behaviour that can be quantified via a theory which couples fluid transport in a porous medium and evaporative flux to mechanics and geometry.
Journal ArticleDOI
Capillarity-driven assembly of two-dimensional cellular carbon nanotube foams
TL;DR: Capillary forces arising during the evaporation of liquids from dense carbon nanotube arrays are used to reassemble the nanotubes into two-dimensional contiguous cellular foams, which have applications as shock-absorbent structural reinforcements and elastic membranes.
Journal ArticleDOI
Cracking in Drying Latex Films
TL;DR: The critical stress at cracking and the accompanying crack spacing is calculated, in general agreement with the observed values, by employing the stress-strain relation for a drying latex film along with the well-known Griffith's energy balance concept.
Journal ArticleDOI
Hierarchical folding of elastic membranes under biaxial compressive stress
TL;DR: It is shown that a repetitive wrinkle-to-fold transition generates a hierarchical network of folds during reorganization of the stress field, and control over the final network morphology is demonstrated by modifying the boundary conditions and geometry.
References
More filters
Dynamic Fracture Mechanics
TL;DR: In this article, basic elastodynamic solutions for a stationary crack and asymptotic fields near a moving crack tip are presented. But they do not consider the elasticity and rate effects during crack growth.
Book
Dynamic Fracture Mechanics
L. B. Freund,John W. Hutchinson +1 more
TL;DR: In this article, basic elastodynamic solutions for a stationary crack and asymptotic fields near a moving crack tip are presented. But they do not consider the elasticity and rate effects during crack growth.
Related Papers (5)
Regular patterns of cracks formed by directional drying of a collodial suspension.
C. Allain,Laurent Limat +1 more