National Advisory Committee for Aeronautics (NACA) - 4 Matching Results

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Determination of the Bending and Buckling Effect in the Stress Analysis of Shell Structures Accessible From One Side Only

Description: "The present report describes a device for ascertaining the bending and buckling effect in stress measurements on shell structures accessible from one side only. Beginning with a discussion of the relationship between flexural strain and certain parameters, the respective errors of the test method for great or variable skin curvature within the test range are analyzed and illustrated by specimen example" (p. 1).
Date: December 1941
Creator: Dose, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inertia of Dynamic Pressure Arrays

Description: From earlier measurements and the mathematical examples, it can be gathered that the inertia of dynamic pressure arrays can be computed with sufficient accuracy and the proper size of tubing established, provided that certain requirements are made on the inertia. A new mathematical term, the pneumatic time constant, depends only on the dimensions of the tubing and of the indicator and enables the comparison of different dynamic pressure arrays.
Date: December 1941
Creator: Weidemann, Hans
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stress Analysis of Circular Frames

Description: "The stresses in circular frames of constant bending stiffnesses, as encountered in thin-wall shells, are investigated from the point of view of finite depth of sectional area of frame. The solution is carried out for four fundamental load conditions. The method is illustrated on a worked out example" (p. 1).
Date: December 1941
Creator: Fahlbusch, H. & Wegner, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The temperature of unheated bodies in a high-speed gas stream

Description: From Summary: "The present report deals with temperature measurements on cylinders of 0.2 to 3 millimeters diameter in longitudinal and transverse air flow at speeds of 100 to 300 meters per second. Within the explored test range, that is, the probable laminar boundary layer region, the temperature of the cylinders in axial flow is practically independent of the speed and in good agreement with Pohlhausen's theoretical values; Whereas, in transverse flow, cylinders of certain diameter manifest … more
Date: December 1941
Creator: Eckert, E. & Weise, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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