The effects of seismic vibrations on the dynamic behavior of a composite system were analyzed. The equations of motion were derived and soIved with special emphasis on determining the resulting stresses. The method of analysis thus developed was applied to the composite structure consisting of the core, pressure vessel, and supporting skirt of the Experimental Gas-Cooled Reactor (EGCR). A system with three degrees of freedom was considered in order to determine the effects of an earthquake of the maximum intensity expected in the area surrounding Oak Ridge, Tennessee. The system of equations of motion was solved both numerically and analytically, and the resonant frequencies were determined. The seismic effect was shown to be small when the frequency of the seismic disturbance coincided with a natural frequency of the system. In particular, the shear stresses in the graphite core were shown to be negligible. (auth)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Whether the submitted instruments are sufficient to constitute a valid petition for the calling of a school election under the provisions of Article 2900a, Vernon's Civil Statutes.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Whether, on appeal from a judgment restraining the Liquor Control Board, the judgment may be superseded.

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A specially designed tee, which is verified by stress analysis to be operable under the design conditions of the SCTl test installation, is shown. The main line sodium flow is changed from primary sodium flow at 1300 deg F to secondary sodium flow at 700 deg F. This is done at such a rate as to cause the downstream temperature to change 35 deg F/sec. There are 25 of these cycles. Startup causes a temperature change from ambient to 350 deg F on both lines at a rate of 100 deg F/hr. There are 5 of these cycles. The main line flow temperature is changed from 1200 to 1300 deg F in 9 seconds. There are 25 of these cycles. From the hold temperature of 350 deg F each line is raised at the rate of 100 deg F/hr. The secondary line is raised to 700 deg F and the main line to 1200 deg F. There are 300 of these cycles. At any temperature the mainline flow temperature drops 110 deg F in 7.5 minutes. There are 7000 of these cycles. Primary sodium at 1300 deg F mixes with secondary sodium at 1100 deg F to give a main …