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. - In: BUILDING RESEARCH JOURNAL. - ISSN 1335-8863. - STAMPA. - 49:3(2001), pp. 197-212.
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
