Evaluation of constitutive models for crushed saltCallahan, G. D.perLoken, M. C.perRE/SPEC, Inc., Rapid City, SD (United States)Hurtado, L. D.perHansen, F. D.perUnited States. Department of Energy.orgUSDOE, Washington, DC (United States)Sandia National LaboratoriesAlbuquerque, New MexicoSandia National Labs., Albuquerque, NM (United States)1996-05-01engThree constitutive models are recommended as candidates for describing the deformation of crushed salt. These models are generalized to three-dimensional states of stress to include the effects of mean and deviatoric stress and modified to include effects of temperature, grain size, and moisture content. A database including hydrostatic consolidation and shear consolidation tests conducted on Waste Isolation Pilot Plant (WIPP) and southeastern New Mexico salt is used to determine material parameters for the models. To evaluate the capability of the models, parameter values obtained from fitting the complete database are used to predict the individual tests. Finite element calculations of a WIPP shaft with emplaced crushed salt demonstrate the model predictions.14 p.Salt DepositsWipp36 Materials Science05 Nuclear FuelsStress AnalysisDeformationSaltsOSTIUNTGDtext_articletextDE96009175SAND--96-0791CCONF-9606115--3AC04-94AL85000230624INIS; OSTI as DE96009175
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