| Titre : | Towards SPH modelling of failure problems in geomechanics : A fractional step Taylor-SPH model (2012) |
| Titre original : | Vers une approximation SPH des problèmes de rupture en géomécanique : un modèle de pas fractionnel du type Taylor-SPH |
| Auteurs : | Thomas Blanc, Auteur ; Manuel Pastor, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | European journal of environmental and civil engineering (Vol. 15 N° Spécial, Septembre 2011) |
| Article en page(s) : | pp. 31-49 |
| Note générale : | Génie Civil |
| Langues : | Anglais |
| Index. décimale : | 624 (Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes) |
| Tags : | Dynamics Localization Fractional step Runge-Kutta Taylor-SPH Viscoplasticity Coupled problems |
| Résumé : | Failure of geomaterials with pores filled with fluids is an important research area in both civil and geological engineering. Many Finite Element (FE) formulations for coupled problems present difficulties such as overestimating failure loads, or mesh alignment dependence resulting on spurious failure mechanisms. Moreover, the spaces where field variables are approximated have to fulfill additional requirements ensuring stability. Stressvelocity-pore pressure formulations in FE analysis provide accurate results for wave propagation and failure analysis. However, FE present important limitations when deformations are large. The purpose of this paper is to present a stabilized Fractional Step, SPH algorithm which combines the advantages of the SPH method for large deformation problems with those of the Taylor-Galerkin algorithm used within the FE framework. |
| DEWEY : | 624 |
| ISSN : | 1964-8189 |
| En ligne : | http://ejece.revuesonline.com/article.jsp?articleId=16585 |
