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Mixed-interpolated finite elements for functionally graded cylindrical shells

โœ Scribed by Claudia Chinosi; Lucia Della Croce

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
681 KB
Volume
92
Category
Article
ISSN
0263-8223

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โœฆ Synopsis

In this paper cylindrical shells made of functionally graded materials (FGMs) are studied. A two-constituent material distribution through the thickness is considered, varying with a simple power rule of mixture. The equations governing the FGMs shells are determined using a variational formulation arising from the Naghdi theory. Moreover a strategy to achieve an improved transverse shear factor is investigated by energy equivalence. To approximate the problem a family of mixed-interpolated finite elements is used. It is based on a suitable reduction of the shear and membrane energy. Several numerical simulations are carried out in order to show the capability of the proposed elements to capture the properties of shells of various gradings, subjected to thermo-mechanical loads.

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