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Optimally convergent high-order X-FEM for problems with voids and inclusions

Author
Sala-Lardies, E.; Fernandez, S.; Huerta, A.
Type of activity
Presentation of work at congresses
Name of edition
6th European Congress on Computational methods in Applied Sciences and Engineering
Date of publication
2012
Presentation's date
2012-09-13
Book of congress proceedings
Proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012), September 10-14, 2012, Vienna, Austria
First page
1
Last page
14
Repository
http://hdl.handle.net/2117/17031 Open in new window
URL
http://cataleg.upc.edu/record=b1253621~S1*cat Open in new window
Abstract
Solution of multiphase problems shows discontinuities across the material interfaces, which are usually weak. Using the eXtended Finite Element Method (X-FEM), these problems can be solved even for meshes that do not match the geometry. The basic idea is to enrich the interpolation space by means of a ridge function that is able to reproduce the discontinuity inside the elements. This approach yields excellent results for linear elements, but fails to be optimal if high-order interpolations are ...
Citation
Sala, E.; Fernandez, S.; Huerta, A. Optimally convergent high-order X-FEM for problems with voids and inclusions. A: European Congress on Computational Methods in Applied Sciences and Engineering. "ECCOMAS 2012: 6th European Congress on Computational Methods in Applied Sciences and Engineering. Programme book of abstracts, September 10-14, 2012, Vienna, Austria". 2012, p. 1-14.
Group of research
LACÀN - Numerical Methods for Applied Sciences and Engineering

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