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Nonlinear interaction of plane elastic waves

Nonlinear interaction of plane elastic waves

Date: June 1, 1998
Creator: Korneev, V.A.; Nihei, K.T. & Myer, L.R.
Description: The paper presents basic first order results of nonlinear elastic theory by Murnaghan for elastic wave propagation in isotropic solids. The authors especially address the problem of resonant scattering of two collimated beams and present analytical solutions for amplitudes of all possible types of resonant interactions for elastic plane waves. For estimation of nonlinear scattered waves they use measured elastic parameters for sandstone. The most profound nonlinear effect is expected for interactions of two SH waves generating compressional P wave at sum frequency. Estimations show that nonlinear phenomena is likely to be observed in seismic data. Basic equations of nonlinear five-constant theory by Murnaghan are also presented.
Contributing Partner: UNT Libraries Government Documents Department
Comments and responses on the Remedial Action Plan and site design for stabilization of the Inactive Uranium Mill Tailings Site, Grand Junction, Colorado. Revision 1

Comments and responses on the Remedial Action Plan and site design for stabilization of the Inactive Uranium Mill Tailings Site, Grand Junction, Colorado. Revision 1

Date: January 1, 1994
Creator: unknown
Description: This report contains information concerning public comments and responses on the remedial action plan and site design for stabilization of the inactive uranium mill tailings site in Grand Junction, Colorado.
Contributing Partner: UNT Libraries Government Documents Department
Fracture assessment of HSST Plate 14 shallow-flaw cruciform bend specimens tested under biaxial loading conditions

Fracture assessment of HSST Plate 14 shallow-flaw cruciform bend specimens tested under biaxial loading conditions

Date: June 1, 1998
Creator: Bass, B.R.; McAfee, W.J.; Williams, P.T. & Pennell, W.E.
Description: A technology to determine shallow-flaw fracture toughness of reactor pressure vessel (RPV) steels is being developed for application to the safety assessment of RPVs containing postulated shallow surface flaws. Matrices of cruciform beam tests were developed to investigate and quantify the effects of temperature, biaxial loading, and specimen size on fracture initiation toughness of two-dimensional (constant depth), shallow, surface flaws. The cruciform beam specimens were developed at Oak Ridge National Laboratory (ORNL) to introduce a far-field, out-of-plane biaxial stress component in the test section that approximates the nonlinear stresses resulting from pressurized-thermal-shock or pressure-temperature loading of an RPV. Tests were conducted under biaxial load ratios ranging from uniaxial to equibiaxial. These tests demonstrated that biaxial loading can have a pronounced effect on shallow-flaw fracture toughness in the lower transition temperature region for an RPV material. The cruciform fracture toughness data were used to evaluate fracture methodologies for predicting the observed effects of biaxial loading on shallow-flaw fracture toughness. Initial emphasis was placed on assessment of stress-based methodologies, namely, the J-Q formulation, the Dodds-Anderson toughness scaling model, and the Weibull approach. Applications of these methodologies based on the hydrostatic stress fracture criterion indicated an effect of loading-biaxiality on fracture toughness; the ...
Contributing Partner: UNT Libraries Government Documents Department
Evaluation of the Argonne National Laboratory servo-controlled calorimeter system

Evaluation of the Argonne National Laboratory servo-controlled calorimeter system

Date: January 1, 1997
Creator: Foster, L.A.
Description: The control system of a replacement mode, twin-bridge, water-bath calorimeter originally built by Mound EG&G Applied Technologies was modified by Argonne National Laboratory. The calorimeter was upgraded with a PC-based computer control and data acquisition system. The system was redesigned to operate in a servo-control mode, and a preheater was constructed to allow pre-equilibration of samples. The instrument was sent to the Plutonium Facility at Los Alamos National Laboratory for testing and evaluation of its performance in the field using heat source standards and plutonium process materials. The important parameters for calorimeter operation necessary to satisfy the nuclear materials control and accountability requirements of the Plutonium Facility were evaluated over a period of several months. These parameters include calorimeter stability, measurement precision and accuracy, and average measurement time. The observed measurement precision and accuracy were found to be acceptable for most accountability measurements, although they were slightly larger than the values for calorimeters in routine use at the Plutonium Facility. Average measurement times were significantly shorter than measurement times for identical items in the Plutonium Facility calorimeters. Unexplained shifts in the baseline measurements were observed on numerous occasions. These shifts could lead to substantial measurement errors if they are not ...
Contributing Partner: UNT Libraries Government Documents Department
Nuclear power generation and fuel cycle report 1996

Nuclear power generation and fuel cycle report 1996

Date: October 1, 1996
Creator: unknown
Description: This report presents the current status and projections through 2015 of nuclear capacity, generation, and fuel cycle requirements for all countries using nuclear power to generate electricity for commercial use. It also contains information and forecasts of developments in the worldwide nuclear fuel market. Long term projections of U.S. nuclear capacity, generation, and spent fuel discharges for two different scenarios through 2040 are developed. A discussion on decommissioning of nuclear power plants is included.
Contributing Partner: UNT Libraries Government Documents Department
Kaon and pion interferometry. Final report

Kaon and pion interferometry. Final report

Date: December 11, 1998
Creator: Murray, M.
Description: Both NA44 and EOS continue to publish high quality data on relativistic heavy ion collisions. The next leap in energy will be provided by BRAHMS at RHIC. Experiment NA44 has measured particle correlations of {pi}{sup {+-}}, K{sup +} and protons and single particle distributions of {pi}{sup {+-}}, K{sup {+-}}, p, {anti p}, d and {anti d} for pA, SA and PbPb collisions at 450GeV/c, 200A{center_dot}GeV and 158A{center_dot}GeV for the p, S and Pb beams respectively. When the spectra are fitted to an exponential in m{sub T}, the inverse slopes increase as the system gets heavier and with increasing particle mass. For larger systems the baryon density at mid-rapidity increases implying more secondary collisions. These fuel a collective expansion and a boost in transverse momentum proportional to the mass as seen in the data. The EOS collaboration has continued to publish results from their large data set of heavy ion collisions at the BEVALAC. They plan to study the energy dependence of coalescence and flow by comparing results from NA44 and EOS.
Contributing Partner: UNT Libraries Government Documents Department
Project W-320, 241-C-106 sluicing: Piping calculations. Volume 3

Project W-320, 241-C-106 sluicing: Piping calculations. Volume 3

Date: July 25, 1998
Creator: Bailey, J.W.
Description: This supporting document has been prepared to make the FDNW calculations for Project W-320 readily retrievable.
Contributing Partner: UNT Libraries Government Documents Department
Low temperature anomaly of LO phonons in La{sub 1.85}Sr{sub 0.15}CuO{sub 4} and YBa{sub 2}Cu{sub 3}O{sub 7}

Low temperature anomaly of LO phonons in La{sub 1.85}Sr{sub 0.15}CuO{sub 4} and YBa{sub 2}Cu{sub 3}O{sub 7}

Date: April 1, 1999
Creator: Egami, T.; Petrov, Y.; McQueeney, R.J.; Yethiraj, M.; Shirane, G. & Endoh, Y.
Description: Inelastic neutron scattering measurements of La{sub 1.85}Sr{sub 0.15}CuO{sub 4} and YBa{sub 2}Cu{sub 3}O{sub 7} show that the dispersion of the high energy LO phonon mode along the (1,0,0) direction is strongly temperature dependent, and at low temperatures develops an anomalous feature indicative of dynamic cell-doubling. The anomaly does not change through superconducting transition and gradually disappears between 50 and 250 K in LSCO. Possible implications are discussed.
Contributing Partner: UNT Libraries Government Documents Department
Examination of four irradiated KVMS fuel elements - RM C-440

Examination of four irradiated KVMS fuel elements - RM C-440

Date: September 1, 1964
Creator: Gruber, W.J.
Description: Four KVNS production fuel elements which had operated for 66 days were submitted to the Radiometallurgy Laboratory for examination after being subjected to unusual conditions during shutdown. It was believed that the elements may have been at elevated temperatures for as long as 4-1/2 hours after shutdown. An abnormal film which appeared to be boiler scale was observed on some of the elements when they were examined in the basin immediately after discharge. Four elements were selected for metallurgical examination to determine whether they had been overheated and to assess any resulting damage or change.
Contributing Partner: UNT Libraries Government Documents Department
241-SY-101 multi-functional instrument tree acceptance for beneficial use (ABU)

241-SY-101 multi-functional instrument tree acceptance for beneficial use (ABU)

Date: October 2, 1995
Creator: Erhart, M.F.
Description: This document formally demonstrates that the ABU process for the 241-SY-101 risers 17B and 17C Multi-functional Instrument Trees (MIT`s) has been properly completed in accordance with the approved ABU checklists. For each item required on the ABU Checklist, a bibliography of the documentation prepared and released to satisfy the requirements is provided. Release of this documentation signifies that the tank farm Operations, Engineering, and Maintenance organizations have accepted responsibility for the MIT`S in 241-SY-101 Risers 17B and 17C
Contributing Partner: UNT Libraries Government Documents Department
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