A constitutive model for representing coupled creep, fracture, and healing in rock salt

Conference · Fri Mar 01 00:00:00 EST 1996

OSTI ID:231860

Chan, K S; Bodner, S R ^[1]; Munson, D E; Fossum, A F ^[2]

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1. Southwest Research Inst., San Antonio, TX (United States)
2. Sandia National Labs., Albuquerque, NM (United States)

The development of a constitutive model for representing inelastic flow due to coupled creep, damage, and healing in rock salt is present in this paper. This model, referred to as Multimechanism Deformation Coupled Fracture model, has been formulated by considering individual mechanisms that include dislocation creep, shear damage, tensile damage, and damage healing. Applications of the model to representing the inelastic flow and fracture behavior of WIPP salt subjected to creep, quasi-static loading, and damage healing conditions are illustrated with comparisons of model calculations against experimental creep curves, stress-strain curves, strain recovery curves, time-to-rupture data, and fracture mechanism maps.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 231860
• Report Number(s): SAND-96-0376C; CONF-9606115-2; ON: DE96006991
• Resource Relation: Conference: 4. conference on the mechanical behavior of salt, Montreal (Canada), 17-18 Jun 1996; Other Information: PBD: [1996]
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
54 ENVIRONMENTAL SCIENCES
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
36 MATERIALS SCIENCE
58 GEOSCIENCES
FLUID FLOW
M CODES
ALPHA-BEARING WASTES
UNDERGROUND DISPOSAL
FRACTURE MECHANICS
WIPP
SALT DEPOSITS
CREEP
PERMEABILITY
COMPUTERIZED SIMULATION
RADIONUCLIDE MIGRATION