Computed and measured responses of a thick-walled hollow cylinder of salt subjected to both homogeneous and inhomogeneous loading

Conference · Thu Jun 01 04:00:00 EDT 1989

OSTI ID:5836388

Morgan, H S; Wawersik, W R

The present evaluations are based on comparisons of measurements on the hollow cylinders with predictions from three different constitutive models for rock salt. The three models are (1) an elastic power-law secondary creep (ESC) model, (2) a revision of the ESC (RESC) model with greatly reduced elastic moduli but unchanged creep parameters, and (3) a unified creep plasticity (UCP) model. The ESC model produced the predictions that differed from the Waste Isolation Pilot Plant (WIPP) in situ measurements by the factor-of-three or more. The modulus reductions in the RESC model are empirical adjustments that produced matching closures and closure rates with the WIPP measurements collected over less than five years. The UCP model yielded closures that were substantially higher than the ESC predictions but still less than the in situ measurements. At the same time, the UCP model produced closure rates in good agreement with the data. 12 refs., 5 figs., 1 tab.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5836388
• Report Number(s): SAND-88-2744; CONF-890628-7; ON: DE89014354
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CLOSURES
CREEP
GEOLOGIC DEPOSITS
HIGH-LEVEL RADIOACTIVE WASTES
LOADING
MANAGEMENT
MATERIALS
MATERIALS HANDLING
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
SALT DEPOSITS
UNDERGROUND DISPOSAL
VARIATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES