Non-Hertzian behavior in binary collisions of plastic balls derived from impact acoustics.


This paper presents slight deviations from Hertz's impact law, inferred from acoustic signatures of polypropylene ball collisions. An impact acoustics model is used to fit the acoustic data. The model is built upon a generalized relationship between impact force (F) and deformation (xi) of the form F=kappaxi(alpha). Agreement with experiment is reached when… (More)
DOI: 10.1121/1.3438477


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