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The equations of Reissner-Mindlin plates obtained by the method of internal constraints

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Abstract

The aim of this paper is to give the title theory of shearable plates a precise and exact position with respect to three-dimensional linear elasticity. We assume that the Reissner-Mindlin representation of the displacement field hold in a 3-D body in the shape of a plate, and discuss how a constitutive response consistent with such a representation should be chosen. We find that the Reissner-Mindlin plate theory results from mere integration over the thickness of the equilibrium equations of a cylindrical body made of a linearly elastic material which is both transversely inextensible and transversely isotropic.

Sommario

Scopo di questo articolo è fornire una deduzione esatta, nell'ambito dell'elasticità lineare tridimensionale, della teoria delle piastre deformabili a taglio menzionata nel titolo. Ammesso che la rappresentazione di Reissner-Mindlin per il campo di spostamento valga in una regione tridimensionale a forma di piastra, si discute come scegliere la risposta costitutiva in maniera coerente con quella rappresentazione. Si trova che la teoria delle piastre di Reissner-Mindlin si ottiene per semplice integrazione sullo spessore delle equazioni di equilibrio di un corpo cilindrico che sia costituito di un materiale linearmente elastico tanto trasversalmente inestensibile che trasversalmente isotropo.

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Nardinocchi, P., Podio-Guidugli, P. The equations of Reissner-Mindlin plates obtained by the method of internal constraints. Meccanica 29, 143–157 (1994). https://doi.org/10.1007/BF01007498

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  • DOI: https://doi.org/10.1007/BF01007498

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