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While predicting the impact force histories from the Zener impact model with different material properties of impactors, several discrepancies were observed and reported in this article. To overcome these discrepancies, a modified Zener model is proposed to accurately calculate impact force histories. In the original Zener theory, nonlinear Hertzian contact law was used, and it was assumed that impact...
Objective of this paper is to present a predictive design of a mechanical filter which is capable of filtering frequencies along a waveguide. A mathematical design procedure is described to filter Lamb wave frequencies in a confined space. Complementary to the existing idea of wave guiding in a plate within an absolute band gap created by a 2D array of phononic crystals, the proposed acoustic metamaterial...
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