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STKESS ANALYSIS

Sul comportamento dei tub i sottlli in duralluminio assoggettati a flesso-torsione e sulle loro applicazioni nella costruzione degli aeromobili, di G. Gabrielli. L¹Aeroteenica, Roma, Dec. 1932, v. 12, no. 12, p. 1594-1605, 1700. diagrs., illus.

Torslonal instability In struts, by A.G. Pugsley. Aircraft en-

gineering, London, Sep. 1932, v. 4, no. 43, p. 229-30. illus.

Torsion calculations for a rear fuselage with two or morę "un-knowns,^w by H. Davies. Flight, London, July 17, 29, 1932, v. 24, no. 1225-1226, p. 530e-h; 710g. diagrs., tables.

On tne torsion of cylinders of syrametrical section (communica-

tion by R.V. Southwell), by W.J. Duncan. Proceedings of the Royal society of London, May 2, 1932, ser. A, v. 136, p. 95-113. diagrs., tables. .

Sur le probleme de torsion des poutres elastiąues composees, par M. N. Mouskuelichvili. C.R. Acad. sci., Paris, Apr. 25,

1932, v. 194, no. 17, p. 1435-37.

Theoretische und experimentelle untersuchungen zur torsion von kastenąuerschnitten, von S. von Boutteville. Forschung auf dem gebiete des ingenieurwesens, Berlin, Jan.-Feb. 1932, v. 3, no. 1, p. 25-42. (Ąbstract Journal of the R.A.S., London, June 1932, p. 496;f    ~

Bending and torsion in horizontally curved beams. (sąuations and essential data for analysis), by I. Oesterblom. Proceedings of the American concrete institution, Detroit, Mich. 1932, v. 28, p. 597-606. diagrs., illus.

Center of torsion for angle and channel sections, by W.L. Schwalbe. Transactions of the A.S.M.E. (Journal of applied mechanics), Nev: York, 1932, v. 54, p. 125-30.

Distortions of stripped aeroplane wings under torsional loading, by D. Williams. London, H.M. Stat. off., 1932.    11 p.

diagrs. (A.R.C. R. & M. no. 1507)

On the torsion of cylinders of syminetrical section, by W.J. Duncan. Proceedings of the Royal society of London, 1932, v. 136, p. 95. (Ąbstract L*Aeroteenica, Roma, July 1933, v. 13, no. 7, p.^- 958)

Several cases of noncircular torsion solved by analysis and direct test, by James Orr. Technieal report of A.R.C. for 1930-31. London, H.M. Stat. off., 1932. v. 2, p. 632-52. diagrs., illus., tables.

Strength tests on thin-walled duralumin cylinders in torsion, by

Eugene E. Lundquist. Washington, 1932.    8 p. diagrs., illus.

tables. (N.A.C.A. Technical notes no. 427)