The use of thick-walled hollow cylinder creep tests for evaluating flow criteria for rock salt

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:5731620

Morgan, H S; Wawersik, W R

Finite element simulations of two laboratory creep tests on thick-walled hollow cylinders of rock salt are evaluated to determine if such bench-scale experiments can be used to establish applicability of either von Mises or Tresca stress measures and associated flow conditions. In the tests, the cylinders were loaded axially and pressurized both internally and externally to produce stress fields similar to those found around underground excavations in rock salt. Several different loading stages were used in each test. The simulations show that for each of two creep models studied, quite different deformations of the cylinders are predicted with the Mises and Tresca flow criteria, especially if friction between the cylinders and axial loading platens is ignored. When friction is included in the simulations, the differences in deformation are changed but are sill clearly distinguishable. 10 refs., 10 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5731620
• Report Number(s): SAND-90-1861C; CONF-910907--2; ON: DE91004792
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603 -- Materials-- Properties
58 GEOSCIENCES
580000* -- Geosciences
CREEP
CYLINDERS
DEFORMATION
FINITE ELEMENT METHOD
GEOLOGIC DEPOSITS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
MECHANICS
NUMERICAL SOLUTION
ROCK MECHANICS
SALT DEPOSITS
STRESSES
TESTING