ISSN: 0149-6115
Page Count: 9

Corrections for Membrane Strength in the Triaxial Test

Kuerbis, RH
Graduate student and professor,University of British Columbia,B.C.,

Vaid, YP
Graduate student and professor,University of British Columbia,B.C.,

Abstract

Equations based on elastic thin cylindrical shell compression theory are developed for correcting stresses for membrane strength in a triaxial test. The corrections are expressed in terms of the unstretched dimensions, the diameter and thickness of the membrane, the axial and volumetric strain of the cylindrical membrane cavity referenced to its unstretched dimensions, together with E and v of the membrane rubber. The development specifically considers changes in membrane thickness as they occur during the straining process, and in particular its influence on the specification of E of the membrane. Direct experimental verification of the derived stress correction is provided in support of their validity.

Keywords:
membranes, triaxial tests

Paper ID: GTJ10179J
DOI: 10.1520/GTJ10179J
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