Damping in Metal-Matrix Composites: Measurement and Modeling,
Abstract
Both experimentally and theoretically, this report considers attenuation, alpha, of elastic waves in a composite consisting of elastic reinforcing particles dispersed in an elastic matrix. The authors consider only geometrical attenuation caused by scattering from particles. Their model contains the effects of particle volume fraction, particle shape, particle size, particle elastic constants, matrix elastic constants, measurement frequency, and elastic-wave polarization. Concerning the particles, they make several assumptions: arbitrary-shape ellipsoids (spheres, discs, rods), uniform distribution, random orientation. Thus, the model composite is macroscopically both homogeneous and isotropic.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1984
- Accession Number
- ADP004705
Entities
People
- H. M. Ledbetter
- S. K. Datta
Organizations
- National Institute of Standards and Technology