The elementary theory of coupling or resonance between a moving load and the flexural waves generated by it in a floating ice sheet is developed and verified by experiments.nExperiments were carried out, using one and two vehicles as moving loads on ice sheets one to two feet thick.nAttempts to solve the problem of a semi-infinite plate on an elastic foundation with a free edge under concentrated load (the ice-breaker problem) are reported. No satisfactory solution was obtained.
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