On Computation of the Biot Coefficients

date February 18, 1987
comments no comments.

Wednesday February 18, 1987 1:00 p.m.

A. Bedford
Applied Research Laboratories
Aerospace Engineering and Engineering Mechanics Department
The University of Texas at Austin

The Biot equations remain the most promising approach for predicting the propagation of acoustic waves in marine sediments and other saturated porous media. However, the equations contain coefficients that depend upon the frequency and the fabric, or microstructure, of the porous medium. Until these coefficients can be determined as functions of frequency and the structure of the material, it will not be possible to confirm that the Biot equations can provide accurate comparisons with experiment. In this seminar, some historical perspective on the equations will be given, and recent research on determining the coefficients in the equations as functions of frequency will be described.