We propose an eXtended Finite Element Method convergent to the asymptotic solution of a thin interface problem for both planar and curved imperfect interfaces in three dimensions. The main advantage over standard cohesive-zone models is the bulk-mesh size independence. With respect to standard eXtended Finite Element Method, in the proposed procedure, blending and quadrature sub-domains are not required. The focus is on the evaluation of the accuracy of the proposed approach in solving three-dimensional benchmark tests. The numerical results are compared with those available from analytical solutions and spring-like interface models.

Variationally consistent eXtended FE model for 3D planar and curved imperfect interfaces / E., Benvenuti; Ventura, Giulio; N., Ponara; A., Tralli. - In: COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING. - ISSN 0045-7825. - 267:(2013), pp. 434-457. [10.1016/j.cma.2013.08.013]

Variationally consistent eXtended FE model for 3D planar and curved imperfect interfaces

VENTURA, Giulio;
2013

Abstract

We propose an eXtended Finite Element Method convergent to the asymptotic solution of a thin interface problem for both planar and curved imperfect interfaces in three dimensions. The main advantage over standard cohesive-zone models is the bulk-mesh size independence. With respect to standard eXtended Finite Element Method, in the proposed procedure, blending and quadrature sub-domains are not required. The focus is on the evaluation of the accuracy of the proposed approach in solving three-dimensional benchmark tests. The numerical results are compared with those available from analytical solutions and spring-like interface models.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2539896
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