TY  - JOUR
AU  - Scaraggi, Michele
AU  - Persson, Bo
TI  - Time-Dependent Fluid Squeeze-Out Between Soft Elastic Solids with Randomly Rough Surfaces
JO  - Tribology letters
VL  - 47
IS  - 3
SN  - 1573-2711
CY  - Basel
PB  - Baltzer
M1  - FZJ-2015-04095
SP  - 409 - 416
PY  - 2012
AB  - We study the time dependency of the interfacial separation and of the area of real contact between a soft elastic cylinder and a rigid solid with a randomly rough surface, squeezed with normal approach in a fluid. This problem is relevant for biological, as well as for bio-medical, seals and tires applications. An ad-hoc numerical scheme is developed to solve the transient mixed-EHD homogenized lubrication problem. We show that, for the soft contact case, the transition from the EHD to the boundary regime can be much more efficiently studied within a simplified (Grubin-like) problem formulation then with the full numerical scheme. This is not only of great conceptional importance, but also of practical importance as the latter calculation is much simpler and faster than the full scheme calculation.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000307295100009
DO  - DOI:10.1007/s11249-012-9996-6
UR  - https://juser.fz-juelich.de/record/201801
ER  -