Accession Number : ADA189414

Title :   Phase Velocity and Attenuation of Plane Elastic Waves in a Particle-Reinforced Composite Medium,

Corporate Author : COLORADO UNIV AT BOULDER DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Datta, S K ; Ledbetter, H M ; Shindo, Y ; Shah, A H

PDF Url : ADA189414

Report Date : Aug 1987

Pagination or Media Count : 26

Abstract : Our study considered effective-plane-wave propagation, both longitudinal and shear, through a medium containing a random distribution of spherical inclusions. We assumed that the particles and matrix are separated by a thin layer of elastic material with different properties. For some systems, we predict measurable effects for the thin layers. Especially, we considered Lead/epoxy and Silicon Carbide/Aluminum. The object of this study was to explore the practicality of using ultrasound to characterize properties of interface layers. Ultrasound is a practical tool for measuring properties of, and characterizing the state of, a material with microstructure (or changes in microstructure).

Descriptors :   *ELASTIC WAVES, *PLANE WAVES, *COMPOSITE MATERIALS, ELASTIC PROPERTIES, INTERFACES, MATERIALS, MICROSTRUCTURE, SHEAR PROPERTIES, VELOCITY, SILICON CARBIDES, ALUMINUM COMPOUNDS, ULTRASONICS

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE