ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 8

Cyclic Simple Shear Testing of Granular Materials

Shaw, P
Geotechnical engineer, Knight Dames & Moore, Durban,

Brown, SF
Professor of civil engineering, University Park, Nottingham,

Abstract

Developments to a pneumatically operated simple shear apparatus for dry granular materials allowing application of cyclic shear and normal stresses are described. Boundary transducers were of only limited success for stress measurement so a prediction method for complete description of the stress state was used. Tests on uniform crushed limestone of 1.5- and 3-mm nominal sizes showed that increased volumetric strains were developed under cyclic normal stress and bidirectional shearing. Shear strains were not much influenced by cyclic application of the normal stress.

Keywords:
shear apparatus, direct shear tests, shear stress, cyclic loading, aggregates, highways, railroads

Paper ID: GTJ10632J
DOI: 10.1520/GTJ10632J
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