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See detailApplication of the X-FEM to the fracture of piezoelectric materials
Béchet, Eric ULg; Scherzer, M.; Kuna, M.

in International Journal for Numerical Methods in Engineering (2009), 77(11), 1535-1565

This paper presents an application of the extended finite element method (X-FEM) to the analysis of fracture in piezoelectric materials. These materials are increasingly used in actuators and sensors. New ... [more ▼]

This paper presents an application of the extended finite element method (X-FEM) to the analysis of fracture in piezoelectric materials. These materials are increasingly used in actuators and sensors. New applications can be found as constituents of smart composites for adaptive electromechanical structures. Under in service loading, phenomena of crack initiation and propagation may occur due to high electromechanical field concentrations. In the past few years, the X-FEM has been applied mostly to model cracks in structural materials. The present paper focuses at first on the definition of new enrichment functions suitable for cracks in piezoelectric structures. At second, generalized domain integrals are used for the determination of crack tip parameters. The approach is based on specific asymptotic crack tip Solutions, derived for piezoelectric materials. We present convergence results in the energy norm and for the stress intensity factors, in various settings. Copyright (C) 2008 John Wiley & Sons, Ltd. [less ▲]

Detailed reference viewed: 31 (8 ULg)
See detailApplications de la méthode des éléments finis étendus à la simulation de la rupture pour les matériaux piezoélectriques
Béchet, Eric ULg; Scherzer, M.; Kuna, Meinhard

Scientific conference (2007)

Detailed reference viewed: 38 (10 ULg)