EVOLUTION OF ELASTIC SHEAR MODULUS IN GRANULAR MATERIALS ALONG ISOTROPIC AND DEVIATORIC STRESS PATHS
Abstract eng: The effect of the mean effective stress on the elastic properties of unbound granular materials is a well-known experimental result. Power laws between the mean effective stress and the shear modulus Gvhmax of three natural sands are established for isotropic stress paths using bender elements. Triaxial test results reveal that such power laws are also suitable for contracting deviatoric stress paths whereas it is no longer the case for dilating deviatoric stress paths. Fabric changes during shearing are therefore highlighted. These observations seem to be a typical feature of the behavior of granular materials.
Contributors:
Publisher:
Columbia University in the City of New York
Conference Title:
Conference Title:
15th ASCE Engineering Mechanics Division Conference
Conference Venue:
New York (US)
Conference Dates:
2002-06-02 / 2002-06-05
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-11-19, last modified 2014-11-19
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