Torsion tests of 24S-T aluminum-alloy noncircular bar and tubing

Moore, R L (Aluminum Company of America) Paul, D A (Aluminum Company of America)

Tests of 24S-T aluminum alloy have been made to determine the yield and ultimate strengths in torsion of noncircular bar and tubing. An approximate basis for predicting these torsional strength characteristics has been indicated. The results show that the torsional stiffness and maximum shearing stresses within the elastic range may be computed quite closely by means of existing formulas based on mathematical analysis and the membrane analogy.

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