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| Titre: | Numerical simulation of cracked orthotropic materials using extended isogeometric analysis |
| Auteur(s): | Habib, Sadam Houcine
Belaidi, Idir
Khatir, S.
Abdel Wahab, M. |
| Mots-clés: | Numerical
Simulation
Cracked orthotropic materials
Isogeometric analysis |
| Date de publication: | 2017 |
| Editeur: | IOP Publishing |
| Collection/Numéro: | Journal of Physics: Conference Series/ Vol. 842 (2017);pp. 1-11 |
| Résumé: | In the present study, extended isogeometric analysis (XIGA) is used to analyse cracks in orthotropic media. NURBS and T-splines geometric technologies are used to define the geometry and the solution. Knot insertion and order elevation are used in NURBS models, while a new local refinement algorithm is applied to T-spline models. In XIGA, the basic idea of the extended finite element method (X-FEM) is used along with isogeometric analysis for modelling discontinuities by including enrichment functions. Special orthotropic crack tip enrichments are used to reproduce the singular fields near a crack tip, and fracture properties of the models are defined by the mixed mode stress intensity factors (SIFs), which are obtained by means of the interaction integral (M-integral). Results of the proposed method are compared with other available results |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/4381 |
| ISSN: | 1742-6588 |
| Collection(s) : | Publications Internationales
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