Mechanics of Granular Materials at Very Low Effective Stress Levels

by Stein Sture, Univ of Colorado, Boulder, CO, USA,
Nicholas C. Costes, Univ of Colorado, Boulder, CO, USA,
David F. McTigue, Univ of Colorado, Boulder, CO, USA,

Document Type: Proceeding Paper

Part of: Engineering Mechanics

Abstract: Gravity's influence on laboratory specimens of uncemented granular materials subjected to low effective stresses, makes it impossible to evaluate constitutive properties in an unambiguous manner. In this paper we describe proposed microgravity experiments and issues related to granular materials characterization.

Subject Headings: Granular materials | Materials characterization | Effective stress | Gravity forces | Material properties | Fluid flow | Laboratory tests

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