Highly Nonlinear Wave Propagation in Elastic Woodpile Periodic Structures
Abstract
In the present work, we experimentally implement, numerically compute with and theoretically analyze a configuration in the form of a single column woodpile periodic structure. Our main finding is that a Hertzian, locally-resonant, woodpile lattice offers a test bed for the formation of genuinely traveling waves composed of a strongly-localized solitary wave on top of a small amplitude oscillatory tail. This type of wave, called a nanopteron, is not only motivated theoretically and numerically, but are also visualized experimentally by means of a laser Doppler vibrometer. This system can also be useful for manipulating stress waves at will, for example, to achieve strong attenuation and modulation of high-amplitude impacts without relying on damping in the system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 03, 2016
- Accession Number
- AD1010149
Entities
People
- C. Chong
- E. Kim
- Fangxing Li
- G. Theocharis
- Jeremy Yang
- P. G. Kevrekidis
Organizations
- University of Washington