Tuning the band-gap of phononic crystals with an initial stress

• Published in: Physica. B, Condensed matter Vol. 407; no. 12; pp. 2032 - 2036
• Main Authors: Feng, Rongxin, Liu, Kaixin
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.06.2012; Elsevier
• Subjects: Aluminum; Band theory; Band-gap; Condensed matter; Condensed matter: structure, mechanical and thermal properties; Crystals; Exact sciences and technology; Initial stress; Initial stresses; Lattice dynamics; Mathematical analysis; Other topics in lattice dynamics; Phononic crystals; Physics; Split-Hopkinson pressure bar apparatus; Steels; The transfer matrix method; Tuning; Phononic crystals; Band-gap; Split-Hopkinson pressure bar apparatus; Initial stress; The transfer matrix method; Phononic crystal; Initial state; Epoxy resin; Aluminium; Energy gap; Compressive stress; Wave propagation; Hopkinson bar; Differential equations; Test method; Transfer matrix method; Stress effects; Steels

The mechanism for the shift of the band-gap in two kinds of finite phononic crystals (PCs) (steel/epoxy and aluminum/epoxy) with different initial stresses is studied experimentally and theoretically. The experimental results and theoretical analysis simultaneously indicate that the initial stress w...