Wavefront Propagation in Random Granular Media

by Martin Ostoja-Starzewski, Michigan State Univ, East Lansing, United States,

Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability


A very brief account is given of a stochastic method developed for analysis of transient waves propagating in one-dimensional random granular-type media. The method is suited to study transient dynamic response of nonlinear microstructures with material randomess, of high signal-to-noise ratio, being present in constitutive moduli and grain lengths. It generalizes the classical solution techniques, based on the theory of characteristics, by taking advantage of the Markov property of the forward propagating disturbances.

Subject Headings: Granular materials | Material properties | Dimensional analysis | Nonlinear analysis | Nonlinear response | Microstructure | Wave propagation | Markov process

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