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Strong and weak arbitrary discontinuities in spectral finite elements. (English) Zbl 1167.74045
This authors present an analysis of strong and weak arbitrary discontinuties in specrtal elements using an enrichment method. With this method the edges of the elements do not need to be coincident with the discontinuity, which is particularly useful in problems with moving discontinuities. The proposed method is based on a complete theoretical foundation. A number of experiments are performed for illustration and justification.

MSC:
74S05 Finite element methods applied to problems in solid mechanics
74S25 Spectral and related methods applied to problems in solid mechanics
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