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Published February 2006 | Published
Journal Article Open

Tunability of solitary wave properties in one-dimensional strongly nonlinear phononic crystals


One-dimensional strongly nonlinear phononic crystals were assembled from chains of PTFE (polytetrafluoroethylene) and stainless-steel spheres with gauges installed inside the beads. Trains of strongly nonlinear solitary waves were excited by impacts. A significant modification of the signal shape and an increase of solitary wave speed up to two times (at the same magnitude of dynamic contact force) were achieved through a noncontact magnetically induced precompression of the chains. The data for the PTFE based chains are presented for the first time and the data for the stainless-steel beads chains are extended into a range of maximum dynamic forces more than one order of magnitude lower than previously reported. Experimental results agreed reasonably well with the long-wave approximation and numerical calculations based on the Hertz interaction law for particles interactions.

Additional Information

© 2006 The American Physical Society. (Received 16 June 2005; published 16 February 2006) This work was supported by the NSF (Grant No. DCMS03013220).

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August 22, 2023
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