Abstract
The critical velocities of moving loads over floating ice plates were determined by several authors. In all of these analyses it was assumed that the in-plane force field in the ice cover is zero. However, due to constrained thermal strains, in-plane forces do occur in the field. The purpose of the present paper is to determine its effect upon the critical velocities of the moving loads. It is shown that a uniform compression force field reduces the critical velocity whereas a tension force field has the opposite effect. Graphs are presented to show these findings.
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