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Initial Strains in the Matrix Force Method of Structural Analysis

Published online by Cambridge University Press:  04 July 2016

J. H. Argyris  and
S. Kelsey
J. H. Argyris
Affiliation:
Department of Aeronautics, Imperial College of Science and Technology
S. Kelsey
Affiliation:
Department of Aeronautics, Imperial College of Science and Technology
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Extract

In a Technical Note in the June Journal (p. 354), Dr. A. L. M. Grzedzielski discusses some aspects of the Matrix Force Method of Structural Analysis and in particular has raised objections to the concept of initial strains and its use by the present writers as an artifice in the treatment of cut-outs and modifications in structures. Dr. Grzedzielski asserts that the idea of initial strains is not valid if the flexibility matrix of the unassembled structural elements is other than purely diagonal. Unfortunately this assertion is just not true.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 64 , Issue 596 , August 1960 , pp. 493 - 495
Copyright
Copyright © Royal Aeronautical Society 1960

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References

1.Grzedzielski, A. L. M. (1960). Note on Some Applications of the Matrix Force Method of Structural Analysis. Journal of the Royal Aeronautical Society, Vol. 64, No. 594, June 1960.Google Scholar
2.Argyris, J. H. and Kelsey, S. (1957). The Matrix Force Method of Structural Analysis and Some New Applications. A.R.C. R. & M. 3034, 1957.Google Scholar
3.Argyris, J. H. and Kelsey, S. (1956). Structural Analysis by the Matrix Force Method with Applications to Aircraft Wings. Jahrbuch 1956 der W.G.L., pp. 78-98.Google Scholar
4.Argyris, J. H. and Kelsey, S. (1959). The Analysis of Fuselages of Arbitrary Cross-Section and Taper. Aircraft Engineering XXXI No. 361, pp. 62–74, No. 362, pp. 101-112, No. 363, pp. 133-143, No. 364, pp. 169-180, No. 365, pp. 192-203, No. 366, pp. 244-256, No. 367, pp. 272-283, 1959.Google Scholar