We analyse a three-field method for the approximate solution of structural problems based on a suitable variant of the Hu-Washizu functional in which the lack of kinematic compatibility, called the strain gap, is assumed as an independent variable. A full discussion of well posedness, convergence properties and limitation principles is provided. A comparison with previous treatments is performed and computational issues are discussed.

Advances in the analysis of mixed methods in elasticity

ROMANO, GIOVANNI;MAROTTI DE SCIARRA, FRANCESCO;DIACO, MARINA
2001

Abstract

We analyse a three-field method for the approximate solution of structural problems based on a suitable variant of the Hu-Washizu functional in which the lack of kinematic compatibility, called the strain gap, is assumed as an independent variable. A full discussion of well posedness, convergence properties and limitation principles is provided. A comparison with previous treatments is performed and computational issues are discussed.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/481007
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