Cyclic stress-strain studies of metals in torsion / by D.A. Paul and R.L. Moore.

Format:

Book

Government document

Author/Creator:

Paul, D. A., author.

Moore, R. L. (Aluminum researcher), author.

Contributor:

United States. National Advisory Committee for Aeronautics, issuing body.

Series:

Technical note (United States. National Advisory Committee for Aeronautics) ; 790.

Technical note / National Advisory Committee for Aeronautics ; no. 790

Language:

English

Subjects (All):

Strains and stresses.

Metals.

Torsion.

metal.

torsional stress.

Medical Subjects:

Metals.

Physical Description:

1 online resource (11 pages, 7 unnumbered pages) : illustrations.

Place of Publication:

Washington, [D.C.] : National Advisory Committee for Aeronautics, 1940.

Summary:

Cyclic torsion tests were made to determine the effects of varying amounts of torsional overstrain on the shape of the shearing stress-strain diagrams of the following materials: aluminum alloy 17ST, mild steel, wrought iron, copper, brass, and magnesium alloy AM57S.

The results indicate no appreciable change in the total shearing elastic range or modulus of elasticity of 17ST for varying amounts of torsional overstrain. The yield strengths for torques in the direction of the first overstrain were slightly higher than observed for torques applied subsequently in the opposite direction.

The total shearing elastic range of the mild steel and wrought iron was somewhat reduced by the overstraining. Although the moduli of elasticity indicated by the stress-strain relations for decreasing torques were essentially the same as found for the first applications of load, linear relationships between stress and strain were not found for subsequent increasing torques.

The shearing stress-strain curves for the copper, the brass, and the AM57S indicate no linear relationship between stress and strain for either increasing or decreasing torques after the first application of overstrain.

Notes:

Description based on online resource, PDF version; title from title page (TRAIL, viewed February 18, 2022).

"December 1940."

"Langley Memorial Aeronautical Laboratory."

No Federal Depository Library Program (FDLP) item number.

Includes bibliographical references (page 9).

Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas

Other Format:

Print version: Paul, D. A. Cyclic stress-strain studies of metals in torsion

OCLC:

1158388768