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18

STHESS ANALYSIS

Approximations for column effect in airpiane wing sp&rs, by Edward P. V/arner and Mac Short. Washington, U.S. Govt. print. off., 1927.    20 p. diagrs. (N.A.C.A. Report no. 251)

Determination of stresses in landing gears and design of shock

absorbing units. Part I, by Theo. De Port. Washington, U. S. Govt. print. off., 1927.    12 p. diagrs. (Air corps informa-

tion circular no. 602)

Precise formulas for restrainea beam with axial load of compression eąual end moments and two symmetrically piaced siae loads, by Alfred S. Niles. Washington, U.S. Govt. print. off., 1927.

2 p. (Air corps information circular no. 591)

Progress report on the study of torsion on wing fraroework, by N.R. Bailey. Washington, U.S. Govt. print. off., 1927.    49 p.

diagrs., illus., tables. (Air service information circular no. 584}

The Strength of tubular struts, by Andrew Robertson. London, II.M. Stat. off., 1927.    44 p. diagrs., illus., tables. (A.R.C.

R. Sc M. no. 1185)

Calculation of combining stress in the structure of airpiane wings, etc., by Karl Thalau. Washington, 1926.    16 p. iilus.

(N.A.C.A. Technical memorandums no. 366) (From Berichte und abhandlung der W.G.L., Berlin, July 1925)

Charts for the solution of stresses in airplane wing beams, by F.E. Flader and E.C. Friel. Washington, U.S. Govt. print. off., 1926.    18 p. diagrs. (Air service information cir

cular no. 555)

Critical loaaing of structural members subjectea to combinea axial and transverse loads., by John E. Younger. Washington, U. S. Govt..print. off., 1926.    7 p. illus. (Air corps information

circular no. 581)

An Elementary treatise on statically indeterminate stresses, by John Ira Parcel and George Alfred Maney. New York, J. Wiley and sons, 1928.    368 p. bibliog., diagrs., tables.

On the distribution of shearing stresses in beams of certain cross-sections, by T. Inokuty. Tokyo, Tokyo imperial university, 1926.    60 p. diagrs. (Aeronautical research institute report

no. 19)    *

Statical hysteresis in the flexure of bars, by G.II. Keulegan.

Washington, U.S. Govt. print. off., 1926.    17 p. illus. (U.S

Bureau of standards technologie papers no. 332}