Elastic wave band gaps in 3-D periodic polymer matrix composites

• Published in: Solid state communications Vol. 96; no. 5; pp. 285 - 289
• Main Authors: Kafesaki, M., Sigalas, M.M., Economou, E.N.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-11-1995; Elsevier
• Subjects: Acoustical properties of solids; Condensed matter: structure, mechanical and thermal properties; D. acoustic properties D. elasticity; Exact sciences and technology; Mechanical and acoustical properties of condensed matter; Physics; D. acoustic properties D. elasticity; Band structure; Energy gap; Composite materials; Acoustic properties; Elasticity; Mechanical properties; Dispersion reinforced material; Elastic waves; Experimental study; Polymers; Crystal structure
• ISSN: 0038-1098; 1879-2766
• DOI: 10.1016/0038-1098(95)00444-0

We present band structure results for elastic waves in periodic composite materials consisting of scatterers (spheres, cubes, or rods) embedded in a homogeneous polymer matrix. The material of the scatterers is a high density material (such as Steel, Ni, Pb, Cu, etc.). In all cases, we find wide full band gaps in fcc, bcc and sc structures for a wide range of filling ratios. We show that the existence of these wide gaps can been analyzed and predicted by using the single scattering results.