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Creep Buckling*

Published online by Cambridge University Press:  07 June 2016

N. J. Hoff
N. J. Hoff*
Affiliation:
Polytechnic Institute of Brooklyn
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Summary

A theory of creep buckling is presented in which the instantaneous elastic and plastic deformations following the application of a load, as well as the steady creep deformations, are considered in an approximate manner. Equations are given from which the critical time, that is, the time elapsing between load application and the collapse of the column, can be computed.

Type
Research Article
Information
Aeronautical Quarterly , Volume 7 , Issue 1 , February 1956 , pp. 1 - 20
Copyright
Copyright © Royal Aeronautical Society. 1956

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Footnotes

*

The work here reported was done at the Polytechnic Institute of Brooklyn under Contract No. AF33 (616)-116 with the Wright Air Development Center, Wright-Patterson Air Force Base, of the U.S. Air Force. The author is indebted to Dr. Sharad A. Patel of the Polytechnic Institute of Brooklyn for his help in the calculations.

References

1. Hoff, N. J. Buckling and Stability, Forty-First Wilbur Wright Memorial Lecture, Section 5.2, Columns Subject to Creep. Journal of the Royal Aeronautical Society, Vol. 58, No. 517, p. 30, January 1954.CrossRefGoogle Scholar
2. Kempner, Joseph. Creep Bending and Buckling of Linear Visco-Elastic Columns. N.A.C.A. T.N. 3136, January 1954; also P.I.B.A.L. Report No. 195, March 1952.Google Scholar
3. Kempner, Joseph. Creep Bending and Buckling of Non-Linear Visco-Elastic Columns. N.A.C.A. T.N. 3137, January 1954; also P.I.B.A.L. Report No. 200, May 1952.Google Scholar
4. Kempner, Joseph and Patel, Sharad A. Creep Buckling of Columns. N.A.C.A. T.N. 3138, January 1954; also P.I.B.A.L. Report No. 205, November 1952.Google Scholar
5. Ness, Nathan. Time Dependent Buckling of a Uniformly Heated Column. N.A.C.A. T.N. 3139, January 1954; also P.I.B.A.L. Report No. 192, October 1951.Google Scholar
6. Patel, Sharad A.; Bloom, Martin; Erickson, Burton; Chwick, Alexander and Hoff, N. J. Development of Equipment and of Experimental Techniques for Column Creep Tests. N.A.C.A. T.N. 3493, September 1955; also P.I.B.A.L. Report No. 239, December 1953.Google Scholar
7. Odqvist, Folke K. G. Influence of Primary Creep on Column Buckling. Journal of Applied Mechanics, Vol. 21, No. 3, p. 295, September 1954.CrossRefGoogle Scholar
8. Hoff, H. J. Rapid Creep in Structures. Journal of the Aeronautical Sciences, Vol. 22, No. 10, p. 661, October 1955.CrossRefGoogle Scholar