Sommario
La teoria del guscio piatto presenta analogia con quella degli stati con distribuzione ripida nel guscio curvo: tuttavia le semplificazioni ammissibili nelle due accezioni presentano differenze che l'analisi asintotica mette in rilievo.
Si indicano le distribuzioni di forze esterne o dislocazioni lungo le normali alla superficie media per le quali soluzioni particolari sono costruibili mediante il sistema differenziale in esame.
Summary
Analogies in formulation and discrepancies in admissibile simplifications in application, between theories for stress states in shallow shells and for steep solutions in non-shallow shells, are noticed.
Distributions of external forces or dislocations along the normals to the midsurface for which particular solutions can be constructed by means of the differential system under consideration, are defined in asymptotic form.
References
Cicala P.,Systematic approximation approach to linear shell theory, Levrotto & Bella, Torino, 1965. A renovated edition of the first 5 Chapters inLinear shell theories. An asymptotic approach, Levrotto & Bella, Torino, 1978.
Green A. E., Zerna W.,Theoretical elasticity, Oxford, 1954.
Von Karman T.,Enzyklopädie der matematischen Wissenschaften, Vol. 4, 1910, p. 349.
Wlassow W. S.,Allgemeine Schalentheorie und ihre Anwendung in der Technik, Akad. Verlag, Berlin 1958, referring to a 1944 paper (P.M.M., Vol. 8, No. 2).
Cicala P., Algostino F.,Discretization method for elastic plates and shells, AIMETA Res. Rep. No. 1, 1972. A finite difference formulation is arrived at through the concepts of finite elements with the advantage of including boundary conditions in the same frame and satisfying the Betti symmetry.
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Cicala, P. Asymptotic properties of steep solutions in shells. Meccanica 14, 97–102 (1979). https://doi.org/10.1007/BF02133455
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DOI: https://doi.org/10.1007/BF02133455