
Accession Number : ADA113914
Title : TMatrix Formulation to Study the Frequency Dependent Properties of Absorbing Materials.
Descriptive Note : Final rept. 1 Aug 8031 Oct 81,
Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS
Personal Author(s) : Varadan,Vijay K ; Varadan,Vasundara V
PDF Url : ADA113914
Report Date : 15 Jan 1982
Pagination or Media Count : 76
Abstract : A scattering matrix theory is presented for studying the multiple scattering of both longitudinal and transverse elastic waves in a medium containing a random distribution of inclusions or voids of arbitrary shape. A statistical analysis with QCA and PercusYevick pair correlation function is then employed to obtain expressions for the average amplitudes of the coherent fields which may be solved to yield the bulk or effective properties of the inhomogeneous medium. Suggestions for incorporating CPA in conjunction with QCA so that materials with dense concentration of inclusions can be considered are also given. (Author)
Descriptors : *Matrices(Mathematics), *Elastic waves, *Absorbers(Materials), *Acoustic properties, *Statistical analysis, Scattering, Elastomers, Distribution, Bonding, Physical properties, Ultrasonic radiation, Wave propagation, Inelastic scattering, Layers, Transverse waves, Numerical analysis, Matrix theory, Theory, Reflection, Thickness
Subject Categories : Statistics and Probability
Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE