*** Chapter 3 - EHL of roll-to-plate nanoimprinting on flat substrates ***

Authors: Jelle Snieder
Precision and Microsystems Engineering
Faculty of Mechanical Engineering
Delft University of Technology

Corresponding author: J. Snieder
Contact information: j.snieder@tudelft.nl

*** General Introduction ***

This dataset contains the numerical models (COMSOL) and the dataset with experimental layer heights 
to reproduce the results in Chapter 3 of Jelle Snieder's PhD thesis project. It is being made public both 
to act as supplementary data for the PhD thesis of Jelle Snieder and in order for other researchers to use 
this data in their own work.

The results were published in:
Snieder, J., Dielen, M., & van Ostayen, R. A. J. (2023). Elastohydrodynamic lubrication of soft-layered rollers and
tensioned webs in roll-to-plate nanoimprinting. Proceedings of the Institution of Mechanical Engineers, Part J:
Journal of Engineering Tribology, 237(10), 1871–1884. DOI: https://doi.org/10.1177/13506501231183860.

This research was made possible by the Topsector Energy Subsidy of the Dutch Ministry of Economic Affairs with 
project number TEHE119003.

*** Purpose of the files ***

The purpose of the numerical models is to simulate the elastohydrodynamic lubrication in roll-to-plate 
nanoimprinting with tensioned webs including bending stiffness. The models can be used to simulate the film height 
and pressure profiles in the lubricated roller contact and to predict the final imprint layer height. 

*** Description of the files in this folder ***

The Comsol files follow this nomenclature system: 

EHL_tensioned_web_validation_X
- X: validation to other dataset / publication.

EHL_tensioned_web_numerical_varying_X_Y
- X: variation of specific parameter(s):
	- X = D: variation of non-dimensional bending stiffness number
	- X = dsmall: variation of non-dimensional elastomeric layer thickness number
	- X = DT: variation of non-dimensional bending stiffness number and non-dimensional web tension number
	- X = M: variation of non-dimensional load number
	- X = T: variation of non-dimensional web tension number
	- X = nu: variation of non-dimensional Poisson ratio
- Y: version number

EHL_tensioned_web_experimental_validation_varyingX
- X: variation of specific parameters:
	- X = UD: variation of non-dimensional speed number and non-dimensional bending stiffness number
	- X = UW: variation of non-dimensional speed number and non-dimensional load number

And the following datasets with experimental layer heights are provided:
- Experimental_Layer_Heights_Variation_Load_Velocity_Viscosity
- Experimental_Layer_Heights_Variation_Velocity_Bending_Stiffness


