Simulation of cracking of metal alkoxide gel film formed on viscous precursor layer using a spring-block model
Year: 2011
Type: article
Abstract: Drying-induced cracking of thin films attached to a non-solid (viscous) substrate is studied both experimentally and numerically. The numerical model is essentially a modification of the spring-block model, introducing a shear stress due to faster drying of the upper film layer, and annealed disorder in the distribution of the spring strengths. The simulation results are in a qualitative agreement with the experimental results, covering all the qualitatively different experimental regimes of the fragment formation. The model allows us to identify the physical processes responsible for the formation of micro-tubes in our experiments, and is helpful in designing and interpreting the film cracking experiments.
Source: Europhysics Letters (EPL)
Institutions: University of Tartu, Tallinn University of Technology
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: G4101448651, G5131567319
OpenAlex ID: W2017885262