Abstract
Reverberant, ultrasonic decay experiments were performed on an irregularly shaped aluminum block on which varying sized water drops were placed. The resulting nonproportionally damped systems were found to possess nonexponential decays in agreement with theoretically derived results. These findings support the author’s proposition that the features of nonexponential decays are a possible quantitative nondestuctive technique for the characterization of localized fatigue damage in metals.
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