Lundquist, Eugene E.Overview
Publication Timeline
Most widely held works by
Eugene E Lundquist
Generalized analysis of experimental observations in problems of elastic stability
by Eugene E Lundquist
(
Book
)
5 editions published in 1938 in English and held by 7 libraries worldwide A generalized method of analyzing experimental observations in problems of elastic stability is presented in which the initial readings of load and deflection may be taken at any load less than the critical load. This analysis is an extension of a method published by Southwell in 1932, in which it was assumed that the intial readings are taken at zero load.
The Pressure distribution over a semicircular wing tip on a biplane in flight
by Richard V Rhode
(
Book
)
2 editions published in 1931 in English and held by 5 libraries worldwide This note presents the results of flight pressure distribution tests on the right upper wing panel of a Douglas M-3 airplane equipped with a semicircular wing tip.
Strength tests on paper cylinders in compression, bending, and shear
by Richard V Rhode
(
Book
)
2 editions published in 1931 in English and held by 5 libraries worldwide Static tests on paper cylinders were conducted to obtain qualitative information in connection with a study of the strength of stressed-skin fuselages. The effects of radius-thickness ratio and bulkhead spacing were investigated with the cylinders in compression, bending, combined bending and shear, and torsion.
Stability of structural members under axial load
by Eugene E Lundquist
(
Book
)
3 editions published between 1937 and 1940 in English and held by 4 libraries worldwide The principles of the Cross method of moment distribution are used to check the stability of structural members under axial load. A brief theoretical treatment of the subject, together with an illustrative problem, is included as a discussion of the reduced modulus at high stresses and a set of tables to aid in the solution of practical problems.
Tables of stiffness and carry-over factor for structural members under axial load
by Eugene E Lundquist
(
Book
)
3 editions published in 1938 in English and held by 4 libraries worldwide Tables of stiffness and carry-over factor are presented for members in which the cross section and axial load do not vary along the length of the member. These tables are of use in solving problems in the stability of structural members under axial load as well as in applications of the Cross method of moment distribution when the effects of axial load in the members are considered. The interval between successive values of the argument is small enough to make interpolation unnecessary in engineering calculations.
A Method of estimating the critical buckling load for structural members
by Eugene E Lundquist
(
Book
)
2 editions published between 1939 and 1940 in English and held by 4 libraries worldwide The relations between load on the structure and rotation of a joint can be used to estimate the lowest critical load after the equation for neutral stability has been tested for three assumed critical loads, each of which is less than the lowest critical load.
Preliminary study of applied load factors in bumpy air
by Richard V Rhode
(
Book
)
2 editions published in 1931 in English and held by 4 libraries worldwide The object of this note is to present the results of a study of accelerations or applied load factors experienced by airplanes flying through "rough" or "bumpy" air.
The Pressure distribution over a Douglas wing tip on a biplane in flight
by Richard V Rhode
(
Book
)
2 editions published in 1930 in English and held by 4 libraries worldwide This note presents the results obtained in pressure distribution tests on the right upper wing panel and tip of a Douglas M-3 airplane in flight. These tests are a part of a more extensive investigation of the effect of changes in tip shape on the load distribution, the tip reported herein being the first of a series of six shapes being tested.
Strength tests of thin-walled duralumin cylinders in pure bending
by Eugene E Lundquist
(
Book
)
1 edition published in 1933 in English and held by 4 libraries worldwide This report is the third of a series presenting the results of strength tests on thin-walled cylinders and truncated cones of circular and elliptic section; it includes the results obtained from pure bending tests on 58 thin-walled duralumin cylinders of circular section with ends clamped to rigid bulkheads. The tests show that the stress on the extreme fiber at failure as calculated by the ordinary theory of bending is from 30 to 80 percent greater than the compressive stress at failure for thin-walled cylinders in compression. The tests also showe that length/radius ratio has no consistent effect upon the bending strength and that the size of the wrinkles that form on the compression half of a cylinder in bending is approximately equal to the size of the wrinkles that form in the complete circumference of a cylinder of the same dimensions in compression.
The Pressure distribution over a square wing tip on a biplane in flight
by Richard V Rhode
(
Book
)
1 edition published in 1931 in English and held by 4 libraries worldwide This note presents the results obtained in pressure distribution tests on the right upper panel of a Douglas M-3 airplane in flight. These tests are a part of an extensive investigation on the effect of changes in tip shape on the load distribution.
Column and plate compressive strengths of aircraft structural materials 24S-T aluminum-alloy sheet
(
Book
)
3 editions published in 1945 in English and held by 3 libraries worldwide Column and plate compressive strengths of 24S-T aluminum-alloy sheet were determined both within and beyond the elastic range from tests of thin-strip columns and from local-instability tests of formed Z- and channel-section columns. These tests are the first of a series in an extensive research investigation to provide data on the structural strength of various aircraft materials. The results, which are presented in the form of curves and charts that may be used in the design and analysis of aircraft structures, supersede preliminary results published previously.
Local instability of symmetrical rectangular tubes under axial compression
by Eugene E Lundquist
(
Book
)
3 editions published between 1938 and 1939 in English and held by 3 libraries worldwide A chart is presented for the coefficient in the formula for the critical compressive stress at which cross-sectional distortion begins in a thin-wall tube of rectangular section symmetrical about its two principal axes. The energy method of Timoshenko was used in the theoretical calculations required for the construction of the chart. The deflection equation used in this method was selected to give good accuracy. The exact values given by solutino of the differential equation were calculated for a number of cases and it was found that the energy solution was correct to within a fraction of 1 percent.
A Method for determining the column curve from tests of columns with equal restraints against rotation on the ends
by Eugene E Lundquist
(
Book
)
2 editions published in 1943 in English and held by 3 libraries worldwide The results are presented of a theoretical study for the determination of the column curve from tests of column specimens having ends equally restrained against rotation. The theory of this problem is studied and a curve is shown relating the fixity coefficient to the critical load, the length of the column, and the magnitude of the elastic restraint. A method of using this curve for the determination of the column curve for columns with pin ends from tests of columns with elastically restrained ends is presented. The results of the method as applied to a series of tests on thin-strip columns of stainless steel are also given.
The Critical compression load for a universal testing machine when the specimen is loaded through knife edges
by Eugene E Lundquist
(
Book
)
2 editions published between 1940 and 1942 in English and held by 3 libraries worldwide The results of a theoretical and experimental investigation to determine the critical compression load for a universal testing machine are presented for specimens loaded through knife edges. The critical load for the testing machine is the load at which one of the loading heads becomes laterally unstable in relation to the other. For very short specimens the critical load was found to be less than the rated capacity given by the manufacturer for the machine. A load-length diagram is proposed for defining the safe limits of the test region for the machine.
Local instability of columns with I-, Z- channel, and rectangular tube sections
by Elbridge Z Stowell
(
Book
)
2 editions published between 1939 and 1940 in English and held by 3 libraries worldwide Charts are presented for the coefficients in the formulas for the critical compressive stress at which cross-sectional distortion beings in the thin-wall columns of I-, Z- channel, and rectangular tube sections. The energy method of Timoshenko was used in the theoretical calculations required for the construction of the charts. The deflection equations were carefully selected to give good accuracy.
Local instability of centrally loaded columns of channel section and Z-section
by Eugene E Lundquist
(
Book
)
2 editions published between 1939 and 1940 in English and held by 3 libraries worldwide Charts are presented for the coefficients in formulas for the critical compressive stress at which cross-sectional distortion begins in a thin-wall member with either a channel section or a Z-section with identical flanges. The energy method of Timoshenko was used in the theoretical calculations required for the construction of the charts. The deflection equations were carefully selected to give good accuracy.
The pressure distribution over a modified elliptical wing tip on a biplane in flight
by Richard V Rhode
(
Book
)
2 editions published in 1931 in English and held by 3 libraries worldwide This note presents the results of flight pressure distribution tests on the right upper wing panel of a Douglas M-3 airplane equipped with a modified elliptical tip having a slight amount of washout.
Pressure distribution over the fuselage of a PW-9 pursuit airplane in flight
by Richard V Rhode
(
Book
)
2 editions published in 1931 in English and held by 3 libraries worldwide
Strength tests of thin-walled duralumin cylinders in combined transverse shear and bending
by Eugene E Lundquist
(
Book
)
1 edition published in 1935 in English and held by 3 libraries worldwide
Critical compressive stress for outstanding flanges
by Eugene E Lundquist
(
Book
)
1 edition published in 1942 in English and held by 3 libraries worldwide more
fewer
Audience Level
 Related IdentitiesAssociated Subjects
Aerodynamic load Aerodynamic load--Measurement Aerodynamic load--Testing Aerodynamics--Research Aeronautics--Research Airframes Airplanes--Design and construction Airplanes--Materials Airplanes--Testing Airplanes--Wings Airplanes--Wings--Testing Aluminum alloys Aluminum alloys--Testing Axial loads Bending Box beams--Testing Buckling (Mechanics) Charts, diagrams, etc. Columns Columns--Testing Cone--Aerodynamics Cylinders Cylinders--Plastic properties Cylinders--Testing Elastic analysis (Engineering) Elasticity Load factor design Loads (Mechanics) Materials--Compression testing Materials--Fatigue Mathematical analysis Monocoque construction Plates (Engineering) Rivets and riveting Shear (Mechanics) Sheet-metal Stability Strains and stresses Strength of materials Strength of materials--Testing Structural design Structural engineering Testing-machines Thin-walled structures Thin-walled structures--Testing Torsion Trusses--Testing Tubes Turbulence Wind tunnel testing
|
Languages
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
