Effects of In-plane elastic stress and normal external stress on viscoelastic thin film stability
Motivated by recent experiments on the electro-hydrodynamic instability of spin-cast polymer films, we study the undulation instability of a thin viscoelastic polymer film under in-plane stress and in the presence of either a close by contactor or an electric field, both inducing a normal stress on...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
09 July 2012
|
| In: |
Mathematical modelling of natural phenomena
Year: 2012, Volume: 7, Issue: 4, Pages: 6-19 |
| ISSN: | 1760-6101 |
| DOI: | 10.1051/mmnp/20127402 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/mmnp/20127402 Verlag, lizenzpflichtig, Volltext: https://www.mmnp-journal.org/articles/mmnp/abs/2012/04/mmnp201274p6/mmnp201274p6.html 
|
| Author Notes: | F. Closa, F. Ziebert, E. Raphaël |
| Summary: | Motivated by recent experiments on the electro-hydrodynamic instability of spin-cast polymer films, we study the undulation instability of a thin viscoelastic polymer film under in-plane stress and in the presence of either a close by contactor or an electric field, both inducing a normal stress on the film surface. We find that the in-plane stress affects both the typical timescale of the instability and the unstable wavelengths. The film stability is also sensitive to the boundary conditions used at the film-substrate interface. We have considered two conditions, either rigidly attaching the film to the substrate or allowing for slip. |
|---|---|
| Item Description: | Gesehen am 27.09.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1760-6101 |
| DOI: | 10.1051/mmnp/20127402 |