TY - BOOK
T1 - Adhesion strength of ice
AU - Oksanen, Pekka
PY - 1982
Y1 - 1982
N2 - The adhesion strength of ice to other materials has been
studied both experimentally and theoretically. In the
experimental part the adhesion strength of ice to
polyethylene (PE), polyvinylchloride (PVC) and steel was
measured varying the temperature, the strain rate, the
ice thickness and the salinity of the ice. The tests were
made with platelike specimens having columnar-grain ice
on both sides. The adhesion strength proved to depend
strongly on the salinity of the ice.
In the theoretical part a method for calculating the
adhesion strength has been presented. The method is based
on fracture mechanics, and it can be applied to both
fresh-water ice and saline ice. It has been shown that in
saline ice the effect of salinity can be described by the
relative brine volume. The mathematical model
satisfactorily explains also e.g. the effect of strain
rate, when a time-dependent elastic modulus of ice is
used. There seems to be a general agreement between the
calculated results and the experimental data obtained by
several workers, but there are also some exceptions.
The calculation method is applied also to the shear and
tensile strengths of saline ice; the agreement with
experimental results is satisfactory.
AB - The adhesion strength of ice to other materials has been
studied both experimentally and theoretically. In the
experimental part the adhesion strength of ice to
polyethylene (PE), polyvinylchloride (PVC) and steel was
measured varying the temperature, the strain rate, the
ice thickness and the salinity of the ice. The tests were
made with platelike specimens having columnar-grain ice
on both sides. The adhesion strength proved to depend
strongly on the salinity of the ice.
In the theoretical part a method for calculating the
adhesion strength has been presented. The method is based
on fracture mechanics, and it can be applied to both
fresh-water ice and saline ice. It has been shown that in
saline ice the effect of salinity can be described by the
relative brine volume. The mathematical model
satisfactorily explains also e.g. the effect of strain
rate, when a time-dependent elastic modulus of ice is
used. There seems to be a general agreement between the
calculated results and the experimental data obtained by
several workers, but there are also some exceptions.
The calculation method is applied also to the shear and
tensile strengths of saline ice; the agreement with
experimental results is satisfactory.
M3 - Report
SN - 951-38-1585-4
T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
BT - Adhesion strength of ice
PB - VTT Technical Research Centre of Finland
CY - Espoo
ER -