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Behavior of a Bi-Material Cylinder Including the Effects of Fracture

Description: A finite element method is presented which utilizes a three dimensional quadrilateral finite element with a stiffness matrix developed in cylindrical coordinated. The method is used to study the behavior of layer cylinders due to asymmetric static thermal loadings. Two types of bonding, rigid and flexible are considered. Additional examples including a pressurized thick walled cylinder and a cylindrical shell under pressure and thermal loadings are presented.
Date: August 1, 1969
Partner: UNT Libraries Government Documents Department
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Dynamics of Wheeled Vehicles, Report 1: A Mathematical Model for the Traversal of Rigid Obstacles by a Pneumatic Tire, Appendix B: Digital Implementation of Segmented Tire Model

Description: Summary: "This appendix presents the procedures for digital implementation of the segmented tire model, developed in the basic report for an analog computer. Two procedures are required: (a) determination of the segment spring coefficient from measured load-deflection test results, and (b) computation of the resultant force vector transmitted to the axle. Digital programs for both procedures were written in Fortran IV for a GE-420 system, and are included" (p. xi).
Date: August 1969
Creator: Murphy, N. R., Jr.
Partner: UNT Libraries Government Documents Department
open access

Effect of Cesium Pressure on Thermionic Stability

Description: It is shown that under certain conditions of heat input, reservoir temperature, and load voltage or resistance a thermionic converter can equilibrate at two radically different operation points, corresponding to conditions of high and low cesium coverage. Moreover, abrupt transitions between these operating regimes, accompanied by a temperature rise of hundreds of degrees, can occur whenever the critical heat generation rate for a given reservoir temperature is exceeded. To provide an adequate safety margin against such an occurrence, thermionic systems must be operated at relatively high cesium pressures, even though this may cause some performance degradation. This paper consists of two parts. The first explains the above effect with reference to a single converter. The second part illustrates the effect of cesium reservoir temperatures on the dynamic behavior of an open-loop thermionic reactor following a small reactivity perturbation.
Date: August 1, 1969
Creator: Schock, Alfred
Partner: UNT Libraries Government Documents Department
open access

Flash x-ray testing of integrated circuit

Description: No Description Available.
Date: August 1, 1969
Creator: Dottle, H.; Ferber, R.R. & Kalapaca, H.P.
Partner: UNT Libraries Government Documents Department
open access

Nuclear subsystem throttling

Description: No Description Available.
Date: August 1, 1969
Creator: Thompson, R.E.
Partner: UNT Libraries Government Documents Department
open access

A Revision of Computer Code POWERCO (Cost of Electricity Produced by Nuclear Power Stations) to Include Breakdowns of Power Cost and Fixed Charge Rates

Description: Report that "describes a new version of the code, POWERC-50, which contains several changes" to the previous code, POWERCO-25, which was used to calculate "the levelized cost of electricity produced by nuclear power stations" (p. 1)
Date: August 1969
Creator: Salmon, Royes
Partner: UNT Libraries Government Documents Department
open access

The Sea Otter in the Eastern Pacific Ocean

Description: Summary of the sea otter in relation to the eastern Pacific Ocean, including physical characteristics, habitat requirements, general behavior, food and feeding behavior, distribution and numbers, reproduction, limiting factors, and behavior in captivity.
Date: August 1969
Creator: Kenyon, Karl W.
Partner: UNT Libraries Government Documents Department
open access

State Legislature Use of Computers

Description: This report is a document outlining the process of the usage of computers in state legislature.
Date: August 1, 1969
Creator: Chartrand, Robert L. & Ayton, Mauree W.
Partner: UNT Libraries Government Documents Department
open access

Stress analysis of 100-K primary piping

Description: The program to assess the integrity of the K Reactor primary coolant piping systems with regard to the potential for brittle failure includes as an essential part an analysis of stresses in the piping materials both during normal operation and during emergency conditions. This program of stress analysis has recently been completed and has included the physical measurement of stress (strain) during normal operation, calculation of working stresses under design and actual conditions, and analysis of the probable effects on these stresses of emergency loadings. It is the intent of this report to present the results of the analysis of the measured and calculated stresses and to define to the extent possible the conditions of stress in the primary coolant piping systems during both normal and emergency conditions. The data is presented for further evaluation in conjunction with the results of the investigations being conducted to determined fracture toughness properties, crack growth rates, and nil ductility transition temperature ranges of the K Reactor coolant piping materials.
Date: August 1969
Creator: Diediker, D. M. & Harrison, C. W.
Partner: UNT Libraries Government Documents Department
open access

TAGS-85/2N RTG Power for Viking Lander Capsule

Description: Results of studies performed by Isotopes, Inc., Nuclear Systems Division, to optimize and baseline a TAGS-85/2N RTG for the Viking Lander Capsule prime electrical power source are presented. These studies generally encompassed identifying the Viking RTG mission profile and design requirements, and establishing a baseline RTG design consistent with these requirements.
Date: August 1, 1969
Partner: UNT Libraries Government Documents Department
open access

Status of irradiations performed by Testing and Irradiation Services for BNW as of July 31, 1969

Description: This report itemizes the irradiations performed by Testing and Irradiation Services for Battelle-Northwest. It lists the material being irradiated, awaiting disposition and material shipped during the report period. Data are given in table form. Information given includes: TISR number; request number; material; piece number; operating time; CMK absorbed; charge date; location; exposure to date; discharge, date and times; and shipping data.
Date: August 7, 1969
Creator: Barker, L. V.
Partner: UNT Libraries Government Documents Department
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