Abstract
The both theoretical and experimental work consists of two parts, the
friction of ice and the adhesion strength of ice.Both static and kinetic
friction between ice and several materials have been measured varying the
temperature, the velocity and the normal load.A method for calculating the
coefficient of kinetic friction between ice and some other material has been
developed.The method is based on the assumption that the friction is caused by
a water film at the contact surface.This water film is produced, when the
frictional heat melts ice into water.Combining the equations describing the
frictional force and the thermal processes an equation for the coefficient of
friction is obtained.The experimental results are not in total agreement with
the theory, which shows that also other phenomena than the water film
mechanism are involved.The adhesion strength of ice to PE, PVC and steel has
been measured varying the temperature, the strain rate, the ice thickness and
the salinity of the ice.A method for calculating the adhesion strength has
been presented.The method is based on fracture mechanics, and it has been
applied to both fresh water ice and saline ice.The mathematical model explains
satisfactorily e.g. the effects of strain rate and salinity of ice.
| Original language | English |
|---|---|
| Qualification | Doctor Degree |
| Awarding Institution |
|
| Award date | 14 Apr 1983 |
| Place of Publication | Espoo |
| Publisher | |
| Print ISBNs | 951-38-1702-4 |
| Publication status | Published - 1983 |
| MoE publication type | G4 Doctoral dissertation (monograph) |