Search Results

Advanced search parameters have been applied.
open access

Physical processes of compaction companion report 1 to simulation of geothermal subsidence

Description: There are a variety of theories, techniques, and parameters in the subsidence literature. Biot's theory, Terzaghi's theory, and the theory of interacting continua (TINC) are used to explain solid-fluid interaction; stress-strain theories range from linear elastic to e-log p to plasticity and pore-collapse theories. Parameters are numerous: void ratio,, permeability, compaction coefficient, pore compressibility, Young's modulus, bulk modulus, shear modulus, Poisson's ratio, Lame coefficients, co… more
Date: March 1, 1980
Creator: Miller, I.; Dershowitz, W.; Jones, K.; Myer, L.; Roman, K. & Schauer, M.
Partner: UNT Libraries Government Documents Department
open access

Structural analysis of TFTR toroidal field coil conceptual design

Description: The conceptual design evaluation of the V-shaped toroidal field coils on the Tokamak Fusion Test Reactor has been performed by detailed structural analysis with the finite element method. The innovation provided by this design and verified in this work is the capability to support toroidal field loads while simultaneously performing the function of twist restraint against the device axial torques resulting from the vertical field loads. The evaluations made for the conceptual design provide pre… more
Date: October 1, 1975
Creator: Smith, R. A.
Partner: UNT Libraries Government Documents Department
open access

Ultrasonic measurement of elastic moduli of 17-4 pH stainless steel and uranium -2 molybdenum from -40/sup 0/C to 800/sup 0/C

Description: Young's Modulus, shear modulus, and Poisson's ratio for 17-4 pH stainless steel and uranium -2 molybdenum are calculated from ultrasonic longitudinal and shear velocities determined from -40/sup 0/C to 800/sup 0/C. The ultrasonic velocities were determined at elevated temperatures using a through-transmission buffer rod arrangement. An indium-gallium slurry bond was used as an ultrasonic couplant between Cupernickel 10 alloy buffer rods and the specimen. Microstructural changes and ph… more
Date: October 1, 1980
Creator: Gieske, J. H.
Partner: UNT Libraries Government Documents Department
open access

Elastic moduli of boron carbide/copper composites from -40/sup 0/C to 800/sup 0/C by ultrasonic methods

Description: An ultrasonic through-transmission technique for high attenuating materials was developed to determine the ultrasonic longitudinal and shear velocities in B/sub 4/C/Cu composites to 800/sup 0/C. Ultrasonic velocity data was used to calculate Young's modulus, shear modulus, and Poisson's ratio for the composites from -40/sup 0/C to 800/sup 0/C. 5 figures, 1 table.
Date: October 1, 1980
Creator: Gieske, J. H.
Partner: UNT Libraries Government Documents Department
open access

Properties of SYNROC-D nuclear waste form: a state-of-the-art reivew

Description: SYNROC is a titanate-based ceramic waste form being developed to immobilize high-level nuclear reactor wastes. SYNROC-D is a unique variation of SYNROC designed to contain high-level defense wastes, particularly those in storage at the Savannah River Plant (SRP). In this report, we review results from physical property and performance tests on SYNROC-D containing simulated SRP wastes. These results provide a data base for comparing SYNROC-D with other defense waste forms. The test data are grou… more
Date: January 1, 1982
Creator: Campbell, J.; Hoenig, C.; Bazan, F.; Ryerson, F.; Guinan, M.; Van Konynenburg, R. et al.
Partner: UNT Libraries Government Documents Department
open access

Laboratory data in support of hydraulically fracturing EGSP OH Well No. 3. Final report

Description: Geologic and geophysical interpretations of data from the EGSP OH Well No. 3 show that an organically lean shale has a gradual transition with depth to an organically rich shale and that two layers (bound each shale formation. The laboratory test program was designed to understand the containment and productivity of a hydraulic fracture induced in this well to enhance gas production from the shale. The porosity in the formations of interest, including the upper barrier, the lower barrier, and t… more
Date: December 1, 1980
Creator: Ahmed, U.; Swartz, G.C. & Scnatz, J.F.
Partner: UNT Libraries Government Documents Department
open access

Preparation and properties of SYNROC D containing simulated Savannah River Plant high-level defense waste

Description: We describe in detail the formulation and processing steps used to prepare all SYNROC D samples tested in the Comparative Leach Testing Program at the Savannah River Laboratory. We also discuss how the composition of the Savannah River Plant sludge influences the formulation and ultimate preparation of SYNROC D. Mechanical properties are reported in the categories of elastic constants, flexural and compressive strengths, and microhardness; thermal expansion and thermal conductivity results are … more
Date: July 23, 1981
Creator: Hoenig, C.; Rozsa, R.; Bazan, F.; Otto, R. & Grens, J.
Partner: UNT Libraries Government Documents Department
open access

Property changes in graphite irradiated at changing irradiation temperature. [Neutrons]

Description: Design data for irradiated graphite are usually presented as families of isothermal curves showing the change in physical property as a function of fast neutron fluence. In this report, procedures for combining isothermal curves to predict behavior under changing irradiation temperatures are compared with experimental data on irradiation-induced changes in dimensions, Young's modulus, thermal conductivity, and thermal expansivity. The suggested procedure fits the data quite well and is physical… more
Date: July 1, 1979
Creator: Price, R.J. & Haag, G.
Partner: UNT Libraries Government Documents Department
open access

Survey of matrix materials for solidified radioactive high-level waste

Description: Pacific Northwest Laboratory (PNL) has been investigating advanced waste forms, including matrix waste forms, that may provide a very high degree of stability under the most severe repository conditions. The purpose of this study was to recommend practical matrix materials for future development that most enhance the stability of the matrix waste forms. The functions of the matrix were reviewed. Desirable matrix material properties were discussed and listed relative to the matrix functions. Pot… more
Date: September 1, 1981
Creator: Gurwell, W.E.
Partner: UNT Libraries Government Documents Department
open access

Effect of pore pressure on the elastic moduli, porosity and permeability of Berea sandstone and Leuders limestone

Description: The behavior of Berea sandstone and Leuders limestone under atmospheric and elevated pore pressures is reported. The porosity and the permeability changes, along with the static and dynamic moduli for these rocks have been determined under various conditions. The existing theoretical background pertinent to the study is reviewed along with the previous experimental work. The detailed descriptions and the discussions on the experimental procedure involved and the equipment utilized are presented… more
Date: February 1, 1983
Creator: Thompson, T.W.; Kelkar, S.M. & Gray, K.E.
Partner: UNT Libraries Government Documents Department
open access

Core analysis in a low permeability sandstone reservoir: Results from the Multiwell Experiment

Description: Over 4100 ft (1100 ft oriented) of Mesaverde core was taken during the drilling of the three Multiwell Experiment (MWX) wells, for study in a comprehensive core analysis program. This core traversed five separate depositional environments (shoreline/marine, coastal, paludal, fluvial, and paralic), and almost every major sand in the Mesaverde at the site was sampled. This paper summarizes MWX core analysis and describes the petrophysical properties at the MWX site; reservoir parameters, includin… more
Date: April 1, 1989
Creator: Sattler, A.R.
Partner: UNT Libraries Government Documents Department
open access

Temperature histories in geothermal wells: survey of rock thermomechanical properties and drilling, production, and injection case studies

Description: Thermal and mechanical properties for geothermal formations are tabulated for a range of temperatures and stress conditions. Data was obtained from the technical literature and direct contacts with industry. Thermal properties include heat capacity, conductivity, and diffusivity. Undisturbed geothermal profiles are also presented. Mechanical properties include Youngs modulus and Poisson ratio. GEOTEMP thermal simulations of drilling, production and injection are reported for two geothermal regi… more
Date: July 1, 1981
Creator: Goodman, M. A.
Partner: UNT Libraries Government Documents Department
open access

Irradiation-induced creep in graphite: a review

Description: Data on irradiation-induced creep in graphite published since 1972 are reviewed. Sources include restrained shrinkage tests conducted at Petten, the Netherlands, tensile creep experiments with continuous strain registration at Petten and Grenoble, France, and controlled load tests with out-of-reactor strain measurement performed at Oak Ridge National Laboratory, Petten, and in the United Kingdom. The data provide reasonable confirmation of the linear viscoelastic creep model with a recoverable … more
Date: August 1, 1981
Creator: Price, R.J.
Partner: UNT Libraries Government Documents Department
open access

Elastic-plastic analysis of the toroidal field coil inner leg of the compact ignition tokamak

Description: Elastic-plastic analyses were made for the inner leg of the Compact Ignition Tokamak toroidal field (TF) coil, which is made of copper-Inconel composite material. From the result of the elastic-plastic analysis, the effective Young's moduli of the inner leg were determined by the analytical equations. These Young's moduli are useful for the three-dimensional, elastic, overall TF coil analysis. Comparison among the results of the baseline design (R = 1.324 m), the bucked pressless design, the 1.… more
Date: July 1, 1987
Creator: Horie, T.
Partner: UNT Libraries Government Documents Department
open access

Summary of mechanical properties data and correlations for Li/sub 2/O, Li/sub 4/SiO/sub 4/, LiAlO/sub 2/, and Be

Description: The data base for thermal expansion, elastic constants, compressive and tensile failure strengths and secondary thermal creep of leading solid-breeder (Li/sub 2/O, Li/sub 4/SiO/sub 4/, and LiAlO/sub 2/) and multiplier (Be) materials is reviewed, porosity, grain size, and stress (for thermal creep). Because the data base is rather sparse in some areas, general properties of ceramics and metals are used to help guide the formulation of the correlations. The primary purpose of the data base summar… more
Date: April 1, 1988
Creator: Billone, M.C. & Grayhack, W.T.
Partner: UNT Libraries Government Documents Department
open access

Comparison of initial damage rates using neutron and electron irradiations

Description: The purpose of this experiment was twofold: (1) The number of interstitials that pin dislocations was studied as a function of neutron energy. (2) By comparison with electron irradiations on the sample, a correlation between the predicted and measured numbers of defects was found. All irradiations were performed on the same high purity copper sample. The sample was machined in the form of a cantilever beam with a flexural resonant frequency of 770 Hz. Changes in Young's modulus at constant stra… more
Date: August 1, 1978
Creator: Goldstone, J.A.R.
Partner: UNT Libraries Government Documents Department
open access

Receiver subsystem analysis report (RADL Item 4-1). 10-MWe Solar Thermal Central-Receiver Pilot Plant: solar-facilities design integration

Description: The results are presented of those thermal hydraulic, structural, and stress analyses required to demonstrate that the Receiver design for the Barstow Solar Pilot Plant will satisfy the general design and performance requirements during the plant's design life. Recommendations resulting from those analyses and supporting test programs are presented regarding operation of the receiver. The analyses are limited to receiver subsystem major structural parts (primary tower, receiver unit core suppor… more
Date: April 1, 1982
Partner: UNT Libraries Government Documents Department
open access

Physical and mechanical properties of cast 17-4 PH stainless steel

Description: The physical and mechanical properties of an overaged 17-4 PH stainless steel casting have been examined. The tensile and compressive properties of cast 17-4 PH are only influenced to a slight degree by changing test temperature and strain rate. However, both the Charpy impact energy and dynamic fracture toughness exhibit a tough-to-brittle transition with decreasing temperature - this transition being related to a change in fracture mode from ductile, dimple to cleavage-like. Finally, although… more
Date: February 1, 1981
Creator: Rack, H. J.
Partner: UNT Libraries Government Documents Department
open access

Strength of nonuniformly oxidized PGX graphite

Description: Flexural and tensile tests were performed on PGX graphite oxidized to produce a steep surface oxidation gradient. Companion tensile specimens were oxidized under different conditions to produce uniform oxidation throughout the specimen, and their tensile strength and Young's modulus were measured. The flexural strength, flexural elastic modulus, and tensile strength were reduced much less by surface oxidation than by uniform oxidation. The test data were in good agreement with a simple linear e… more
Date: May 1, 1981
Creator: Price, R. J. & Beavan, L. A.
Partner: UNT Libraries Government Documents Department
open access

Thermal impact of waste emplacement and surface cooling associated with geologic disposal of nuclear waste

Description: The thermal effects associated with the emplacement of aged radioactive wastes in a geologic repository were studied, with emphasis on the following subjects: the waste characteristics, repository structure, and rock properties controlling the thermally induced effects; the current knowledge of the thermal, thermomechanical, and thermohydrologic impacts, determined mainly on the basis of previous studies that assume 10-year-old wastes; the thermal criteria used to determine the repository waste… more
Date: August 1, 1982
Creator: Wang, J. S. Y.; Mangold, D. C.; Spencer, R. K. & Tsang, C. F.
Partner: UNT Libraries Government Documents Department
open access

Users manual for CATNIP: A computer analysis tool for normal impact penetration

Description: This program was developed to provide a computer based framework for analytical models developed by Forrestal and co-workers [1--2] to predict depth of penetration and temporal quantities for rigid non- deforming ogive-nose projectiles penetrating into a wide variety of targets. CATNIP provides results for penetration into semi-infinite targets, but does not provide for perforation events. The program has a graphical user interface to facilitate operation so that people unfamiliar with the anal… more
Date: September 1, 1993
Creator: Altman, B. S.
Partner: UNT Libraries Government Documents Department
open access

Compression wave studies in Blair dolomite

Description: Dynamic compression wave studies have been conducted on Blair dolomite in the stress range of 0-7.0 GPa. Impact techniques were used to generate stress impulse input functions, and diffuse surface laser interferometry provided the dynamic instrumentation. Experimental particle velocity profiles obtained by this method were coupled with the conservation laws of mass and momentum to determine the stress-strain and stress-modulus constitutive properties of the material. Comparison between dynamic … more
Date: February 1, 1976
Creator: Grady, D. E.; Hollenbach, R. E.; Schuler, K. W. & Callender, J. F.
Partner: UNT Libraries Government Documents Department
open access

Mechanical Properties of Blair Dolomite

Description: Pressure-volume, uniaxial stress loading to failure, uniaxial strain, and acoustic velocity determinations were made on Blair dolomite at confining pressures ranging to 3.5 GPa (Pa = Paschals where 10/sup 5/ Pa = 1 bar or 0.1 GPa = 1 kbar). The bulk modulus K, rapidly rises from an initial 10.4 GPa (at atmospheric pressure) to 102.0 GPa at 1 GPa pressure. At higher pressures, K remains essentially constant (110 GPa). The maximum volume change on loading is 3.9% at 3.5 GPa; the unloading closely… more
Date: October 19, 1973
Creator: Heard, H. C.; Duba, A.; Abey, A. E. & Schock, R. N.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen