WorldCat Identities

Langley Aeronautical Laboratory

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Works: 1,715 works in 2,439 publications in 1 language and 9,994 library holdings
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Most widely held works about Langley Aeronautical Laboratory
 
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Most widely held works by Langley Aeronautical Laboratory
Recent research on the determination of natural modes and frequencies of aircraft wing structures by Langley Aeronautical Laboratory( Book )

2 editions published in 1956 in English and held by 44 WorldCat member libraries worldwide

Aerodynamic theory and its application to flutter by Langley Aeronautical Laboratory( Book )

1 edition published in 1956 in English and held by 28 WorldCat member libraries worldwide

Column and plate compressive strengths of aircraft structural materials. Extruded 0-1HTA magnesium alloy by George J Heimerl( Book )

7 editions published between 1945 and 1946 in English and held by 21 WorldCat member libraries worldwide

Column and plate compressive strengths of extruded 14S-T aluminum alloy were determined both within and beyond the elastic range from tests of flat-end H-section columns and from local-instability tests of H-, Z-, and channel-section columns. These tests are part of an extensive research investigation to provide data on the structural strength of various aircraft materials. The results are presented in the form of curves and charts that are suitable for use in the design and analysis of aircraft structures
Tensile tests of NACA and conventional machine-countersunk flush rivets by Merven W Mandel( Book )

4 editions published in 1944 in English and held by 8 WorldCat member libraries worldwide

An investigation was conducted to determine and compare the tensile strength of NACA and conventional machine-countersunk flush rivets of several rivet-head angles and varying countersunk depth. The results of the investigation are presented in the form of curves that show the variation of the tensile strength of the rivet with the ratio of the sheet thickness to the rivet diameter. For the same rivet-head angle and for a given angle of c/d, the NACA rivets developed higher tensile strength than the conventional rivets
Critical stress for an infinitely long flat plate with elastically restrained edges under combined shear and direct stress by Elbridge Z Stowell( Book )

3 editions published in 1943 in English and held by 8 WorldCat member libraries worldwide

A simple interaction curve is presented for evaluating the conditions of combined shear and direct stress under which an infinitely long, flat plate with equal elastic restraints against rotation along the edges will become unstable. The theoretical work that led to the interaction curve is presented in the form of appendixes
Analysis of vertical-tail loads in rolling pull-out maneuvers by Robert R Gilruth( Book )

3 editions published in 1944 in English and held by 7 WorldCat member libraries worldwide

An analysis is presented of the vertical-tail loads to be expected as a result of abrupt aileron action in accelerated flight, as in rolls from turns or pull-outs, for example
Principles of moment distribution applied to stability of structures composed of bars or plates by Eugene E Lundquist( Book )

3 editions published between 1943 and 1945 in English and held by 5 WorldCat member libraries worldwide

The principles of the cross method of moment distribution, which have previously been applied to the stability of structures composed of bars under axial load, are applied to the stability of structures composed of long plates under longitudinal load. A brief theoretical treatment of the subject, as applied to structures composed of either bars or plates, is included, together with an illustrative example for each of these two types of structure. An appendix presents the derivation of the formulas for the various stiffnesses and carry-over factors used in solving problems in the stability of structures composed of long plates
Langley full-scale tunnel investigation of the factors affecting the directional stability and trim characteristics of a fighter-type airplane by Harold H Sweberg( Book )

4 editions published in 1945 in English and held by 5 WorldCat member libraries worldwide

Tests were made in the Langley full-scale tunnel of the Grumman XF6f-4 airplane in order to investigate the factors that affect the directional stability and trim characteristics of a typical fighter-type airplane. Eight representative flight conditions were investigated in detail. The separate contributions of the wing-fuselage combination, the vertical tail, and the propeller to the directional stability of the airplane in each condition were determined. Extensive air-flow surveys of sidewash angle and dynamic-pressure ratio along a line coincident with the rudder hinge line were made for each condition investigated to air evaluating the slipstream effects. The data obtained from the air-flow surveys were also used to investigate methods for calculating the contribution of the vertical tail to the airplane directional stability
The effect of internal pressure on the buckling stress of thin-walled circular cylinders under torsion by Harald Crate( Book )

2 editions published in 1944 in English and held by 4 WorldCat member libraries worldwide

The results of a series of tests to determine the effect of internal pressure on the buckling load of a thin cylinder under an applied torque indicated that internal pressure raises the shear buckling stress. The experimental results were analyzed with the aid of previously developed theory and a simple interaction formula was derived
The strength and stiffness of shear webs with round lightening holes having 45 degree flanges by Paul Kuhn( Book )

2 editions published in 1942 in English and held by 4 WorldCat member libraries worldwide

Tests were made of 18 shear webs with round lightening holes having 45 degree flanges. The purpose of the tests was to extend the range of a previous investigation to larger ratios of hole diameter to web depth and of web depth to web thickness. Simple empirical formulas are given for the strength and the stiffness of shear webs; these formulas incorporate the results of the previous investigation. Design charts are also given to facilitate the application of the results
Effect of normal pressure on the critical compressive stress of curved sheet by Norman Rafel( Book )

2 editions published in 1942 in English and held by 4 WorldCat member libraries worldwide

Results are presented of tests of two specimens tested to study the effect of normal pressure on the critical compressive stress for thin curved sheets. These specimens are designated by their respective rib spacings of 10 inches and 30 inches. The relationship between compressive stress and normal pressure at which buckles disappeared is independent of whether the buckles were made to disappear by increase of normal pressure or decrease of compressive stress
Charts for calculation of the critical stress for local instability of columns with I-, Z-, channel, and rectangular-tube section by W. D Kroll( Book )

2 editions published in 1943 in English and held by 4 WorldCat member libraries worldwide

Charts are presented for the calculation of the critical stress for local instability of columns with I-, Z-, channel, and rectangular-tube section. These charts are intended to replace the less complete charts published in NACA Technical Note No. 743. The values used in extending the charts are computed by moment-distribution methods that give somewhat more accurate values than the energy method previously used and also make it possible to determine theoretically which element of the cross section is primarily responsible for instability
The strength and stiffness of shear webs with and without lightening holes by Paul Kuhn( Book )

2 editions published in 1942 in English and held by 4 WorldCat member libraries worldwide

Nearly 200 tests were made on the strength of shear webs of 24S-T aluminum alloy, with and without lightening holes. The tests were made in a jig of the single-specimen type, in which the specimen is free to collapse completely without developing diagonal tension. The lightening holes were circular and had either flanged edges or beaded edges, the specimens with flanged edges constituting by far the largest test group
Tables of stiffness and carry-over factor for flat rectangular plates under compression by W. D Kroll( Book )

2 editions published in 1943 in English and held by 4 WorldCat member libraries worldwide

Tables of stiffness and carry-over factor are presented for infinitely long flat plates subjected to a uniformly distributed longitudinal compressive load. The tables are intended for use in solving problems in the stability of structures composed of plates under compression
Charts for calculation of the critical compressive stress for local instability of idealized web- and T-stiffened panels by Rolla B Boughan( Book )

2 editions published in 1944 in English and held by 4 WorldCat member libraries worldwide

Charts are presented for the calculation of the critical compressive stress - the stress at which local instability occurs - for idealized web- and T-stiffened panels, and examples of the use of the charts are given
Effect of normal pressure on the critical compressive and shear stress of curved sheet by Norman Rafel( Book )

2 editions published in 1945 in English and held by 4 WorldCat member libraries worldwide

Results are presented of tests of two sets of 20 curved-sheet specimens to determine the effect of normal pressure on the critical compressive and shear stress of curved sheet. It was found that normal pressure raised the critical compressive and shear stress of curved sheet except when outward bulging occurred in compression, in which case the critical stress was lowered by normal pressure
Approximate stress analysis of multi-stringer beams with shear deformation of the flanges by Paul Kuhn( Book )

2 editions published in 1938 in English and held by 1 WorldCat member library worldwide

The problem of the skin-stringer combinations used as axially loaded panels or as covers for box beams is considered from the point of view of the practical stress analyst. By a simple substitution the problem is reduced to the problem of the single-stringer structure, which has been treated in NACA Report no. 608. The method of making this substitution is essentially empirical; in order to justify it, comparisons are shown between calculations and strain-gage tests of three beams tested by the author and of one compression panel and three beams tested and reported elsewhere. --
 
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Alternative Names

controlled identityLangley Research Center

Hampton (Va.). Langley Aeronautical Laboratory

Langley Air Force Base (Va.). Langley Aeronautical Laboratory

Langley Memorial Aeronautical Laboratory

United States. Langley Aeronautical Laboratory

United States. Langley Aeronautical Laboratory, Hampton, Va.

United States. Langley Memorial Aeronautical Laboratory

United States. National Advisory Committee for Aeronautics. Langley Aeronautical Laboratory

USA National Advisory Committee for Aeronautics Langley Memorial Aeronautical Laboratory

Languages
English (72)