Abstract
The term “effective strain rate” is frequently encountered in literature devoted to the ice-structure interaction problem. As a rule, it is defined as a ratio between indentation velocity and structure width, multiplied by a certain nondimensional factor (αV/d). Usually this parameter is used to separate different interaction regimes or different types of ice behavior during the indentation process. The concept of an effective strain rate, (e˙esr) seems to be quite useful because it allows the comparison of the results of experiments conducted at different scales if e˙esr is properly defined. What is more, the correct definition of e˙esr may help to apply the results obtained on the basis of small-scale laboratory tests to real ice-resistant structures. On the other hand, the overall concept of an effective strain rate definitely lacks a fundamental basis and there is no consensus on the value of the nondimensional factor α. The present paper discusses various approaches to the definition of e˙esr and giv...
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