Dynamics of Phononic Materials and Structures: Historical Origins, Recent Progress, and Future Outlook

Abstract The study of phononic materials and structures is an emerging discipline that lies at the crossroads of vibration and acoustics engineering and condensed matter physics. Broadly speaking, a phononic medium is a material or structural system that usually exhibits some form of periodicity, which can be in the constituent material phases, or the internal geometry, or even the boundary conditions. As such, its overall dynamical characteristics are compactly described by a frequency band structure, in analogy to an electronic band diagram. With roots extended to early studies of periodic systems by Newton and Rayleigh, the field has grown to encompass engineering configurations ranging from trusses and…

• NS
  National Science Foundation

  Awards: 0927322, 1131802, CAREER, 0926776
• AF
  Agency for Defense Development

  Award: UD110096DD
• DA
  Defense Advanced Research Projects Agency
• DA
  Defense Acquisition Program Administration