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Modélisation de fissures elliptiques internes par hybridation de fonctions de poidsEmbedded elliptical cracks modeling with hybridization of weight functions |
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| Authors: | Brahim El Khalil Hachi,Said Rechak,Mohamed Haboussi,M&#x barek Taghite |
| Affiliation: | 1. Département electromécanique, centre universitaire de Djelfa, BP 3117, Ain-Cheih 17000, Djelfa, Algérie;2. Laboratoire de génie mécanique et développement, École nationale polytechnique, BP 182, El-Harrach 16200, Alger, Algérie;3. Laboratoire d''énergétique et de mécanique théorique et appliquée (LEMTA), UMR 7563 CNRS INPL-UHP, BP 160, 54504 Vand?uvre-lès-Nancy, France |
| Abstract: | A method improving the evaluation of the stress intensity factor by hybridization of two weight functions is presented and applied to embedded elliptical cracks under various loadings. The hybridization consists in using one or the other function in the zone of the crack where it is the most efficient. The delimitation of the two zones is achieved after optimizing the axes ratio and the curvature radius of the crack. During this optimization we seek to reduce the effects of the singularities present in the weight functions as well as to take better into account the influence of the ellipse curvature. To cite this article: B. El Khalil Hachi et al., C. R. Mecanique 334 (2006). |
| Keywords: | Mécanique des solides numérique Hybridation Fonction de poids Facteur d'intensité de contrainte Fissure elliptique interne Computation solid mechanics Hybridization Weight function Stress intensity factor Embedded elliptical crack |
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