ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 6

Hollow Cylinder Tests on Natural Rock Salt

Senseny, PE
Senior staff scientist, project engineer, and staff technician, RE/SPEC Inc., Rapid City, SD

Mellegard, KD
Senior staff scientist, project engineer, and staff technician, RE/SPEC Inc., Rapid City, SD

Wagner, LA
Senior staff scientist, project engineer, and staff technician, RE/SPEC Inc., Rapid City, SD

Abstract

Constitutive equations for the thermomechanical behavior of salt must accurately model material behavior when all three principal stresses are independent. Conventional triaxial compression and extension tests measure material response for stress states in which two of the principal stresses are equal. A computer-controlled, servohydraulic system is described for testing hollow cylinder specimens at stress states in which the principal stresses are controlled independently. Results of validation tests are given to show that the test system provides accurate measurements of the behavior of salt.

Keywords:
rock salt constitutive equation, creep, automated testing, hollow cylinder testing

Paper ID: GTJ10691J
DOI: 10.1520/GTJ10691J
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