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Title: An edge-based smoothed XFEM for fracture in composite materials
Authors: Jiang, Y.
Tay, T.E. 
Chen, L.
Sun, X.S. 
Keywords: Composite material
Edge-based smoothed extended finite element method
Fracture mechanics
Issue Date: Jan-2013
Citation: Jiang, Y., Tay, T.E., Chen, L., Sun, X.S. (2013-01). An edge-based smoothed XFEM for fracture in composite materials. International Journal of Fracture 179 (1-2) : 179-199. ScholarBank@NUS Repository.
Abstract: In this work, an edge-based smoothed extended finite element method (ES-XFEM) is extended to fracture analysis in composite materials. This method, in which the edge-based smoothing technique is married with enrichment in XFEM, shows advantages of both the extended finite element method (XFEM) and the edge-based smoothed finite element method (ES-FEM). The crack tip enrichment functions are specially derived to represent the characteristic of the displacement field around the crack tip in composite materials. Due to the strain smoothing, the necessity of integrating the singular derivatives of the crack tip enrichment functions is eliminated by transforming area integration into path integration, which is an obvious advantage compared with XFEM. Two examples are presented to testify the accuracy and convergence rate of the ES-XFEM. © 2012 Springer Science+Business Media Dordrecht.
Source Title: International Journal of Fracture
ISSN: 03769429
DOI: 10.1007/s10704-012-9786-z
Appears in Collections:Staff Publications

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