title: Architected Materials with Ultra-Low Porosity for Vibration Control.
abstract: Periodic structures with extremely low porosities capable of forming large band gaps-frequency ranges with strong wave attenuation-are designed by patterning an elastic sheet with an array of alternating crack-like pores separated by small ligaments. The results indicate that the presence and size of the band gaps are controlled by the smallest geometric -feature in the system (which can be easily controlled by tuning the aspect ratio of the pores), providing an important guideline for the design of systems with the -desired response.
authors.affiliation: Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
authors.forename: Farhad
authors.initials: F
authors.lastname: Javid
authors.affiliation: Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
authors.forename: Pai
authors.initials: P
authors.lastname: Wang
authors.affiliation: Siemens ADGT, 9545 Cote de Liesse, Dorval, Québec, H9P 1A5, Canada.
authors.forename: Ali
authors.initials: A
authors.lastname: Shanian
authors.affiliation: Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.|Kavli Institute, Harvard University, Cambridge, MA, 02138, USA.
authors.forename: Katia
authors.initials: K
authors.lastname: Bertoldi
keywords: architected materials; dynamic response; ultra-low porosity, frequency band gap