Engineering Transactions, 29, 2, pp. 279-294, 1981

Post-Yield Deflection of Elastic-Plastic Beams Under Uniformly Increasing Loads

S. Dorosz
Institute of Fundamental Technological Research, Warszawa
Poland

A. Sawczuk
Institute of Fundamental Technological Research, Warszawa
Poland

A. Biegus
Institute of Fundamental Technological Research, Warszawa
Poland

Z. Kowal
Institute of Fundamental Technological Research, Warszawa
Poland

W. Seidel
Technical University, Wrocław
Poland

Experiments on single span and doable span beams beyond the elastic range are reported on in the case when the applied load increases in proportion. The test results are examined in accordance with a deflection analysis based on different approaches. The comparison made allows to state that the finite spread of plastic zones should be accounted for when calculations deflections in the post-elastic mange.

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References

W. BANDYSZEWSKI, A. SAWCZUK, Method of assessing deflections in elastic-plastic beams and frames, Arch. Inż. Ląd., 20, 63-80, 1974 [in Polish].

W. BANDYSZEWSKI, A. SAWCZUK, Assessment of deflection of elastic plastic structures by step¬wise rigidity method, Staveb. Cas., 23, 627-637, 1975.

W. BANDYSZEWSKI, A. SAWCZUK, Deflection estimation for elastic-plastic structures with finite spread of yielding zones, Arch. Inż. Ląd. [in press].

L. S. BEEDLE, Plastic design of steel frames, John Wiley, New York 1961.

A. BIEGUS, Z. KOWAL, W. SEIDEL, Experiments on shakedown of two-span beams, Wrocław Technical University Report No l-2/B-10/78, 1978 [in Polish].

S. DOROSZ, Deflection of elastic-plastic structures at shakedown, Report IFTR No 65, 1978, Warsaw [in Polish].

S. DOROSZ, An improved upper bound to maximum deflections of elastic-plastic structures at shakedown, J. Struct. Mech., 6, 267-287, 1978.

S. DOROSZ, Estimates of deflections of elastic plastic strictures [in preparation].

S. DOROSZ, Z. KOWAL, J. A. KONIG, A. SAWCZUK, W. SEIDEL, Shakedown tests of two-span beams [submitted].

D. G. EYRE, T. V. GALAMBOS, Deflection analysis for shakedown, J. Struct. Div. Proc. ASCE 96, 1359-1376, 1970.

J. HEYMAN, Plastic design of frames, 2, Applications, Cambridge University Press, Cambridge 1971.

P. G. H0DGE, Plastic analysis of structures, Mc Graw Hill, New York 1959.

K. E. KNUDSEN, C. H. YANG, B. G, JOHNSTON, L. S. BEEDLB, Plastic strength and deflections of continuous beams, Welding Res. Suppl., 240-256, May 1953.

J. A. KONIG, Engineering applications of shakedown theory, CISM Lecture Notes, Udine 1977.

J. MUTERMILCH, E. OLSZEWSKI, M. LUBIŃSKI, Design of steel structures. New methods, Budownictwo i Architektura, Warsaw 1956 [in Polish].

B. G. NEAL, The plastic methods of structural analysis, Chapman, London 1963

Polish Engineering Standard Pn-16/B-03200 Steel Structures.

Recommandations pour le calcul en plasticite des constructions en acier, Construction Metallique, 4, 1975.

K. A. RECKLING, Plastizitatstheorie und ihre Anwendung auf Festigkeitsprohleme, Springer Verlag, Berlin .1967.

A. R. RZHANICYN, Analysis of structures accounting for plastic material properties, Moscow 1949 [in Russian].

A. SAWCZUK, Load carrying capacity of plane frames, Warsaw 1964 [in Polish].




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