Abstract
In this paper the unit-dummy-load method is generalized on the basis of Castigliano's Theorem. On these grounds the general equations of deflection surfaces of the structures, such as a kind of beams, plates and shells, are directly derived by the force method.
We derived the equations of the deflection surfaces of the rectangular thin plates and thick plates considering the effect of transverse shearing deformations with the inhomogeneous displacement boundary conditions. At the same time we give the equations of deflection axes of the corresponding straight beams.
The applications of the reciprocal theorem are also generalized.
Three simple calculated examples are given.
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References
Леибензон. Л. С. С. В арцаццонные Мемо ы Решенцс за ач Теорцц Упргосмц. Издательство Академии наук сссР. Москва (1951). Yeh Kai-yuan and Lu Wen-da, Solution of the Problem of Elastodynamics, Science Publishing House (1958) (in Chinese)
Hu Hai-chang, Variation Method and Structural Design—The Variation Principle of Elastodynamics and Its Application (in Chinese)
Timoshenko, S. and Woinowsky-Krieger, Theory of Plate and Shells, second edition (1959).
Langhaar, Henry L., Energy Methods in Applied Mechanics, (1969).
Timoshenko, S., Strength of Materials, Part I.
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Communicated by Chien Wei-zang.
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Bao-lian, F. Energy theorems for solving equations of deflections. Appl Math Mech 2, 765–777 (1981). https://doi.org/10.1007/BF01897647
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DOI: https://doi.org/10.1007/BF01897647