| Titre : | Computational post failure analysis with a second gradient theory : Gradient elastoplasticity (2011) |
| Auteurs : | Antonis Zervos, Auteur ; Panos Papanastasiou, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | European journal of environmental and civil engineering (Vol. 14 N° 8-9, Septembre 2010) |
| Article en page(s) : | pp. 1067-1079 |
| 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 : | Gradient plasticity elastoplasticity Post-bifurcation modelling Finite elements Numerical Microstructure |
| Résumé : | This article presents a theory of Gradient Elastoplasticity for strain-softening materials, in which internal length scales are present in both the elastic and the elastoplastic regime. A numerical discretisation based on the displacement formulation and a C1 finite element is used. It is shown that the formulation enables robust modelling of the post-peak material behaviour leading to localisation of deformation, spontaneously tracking emergent instabilities and quantitatively capturing details of the final localised failure mechanism. |
| DEWEY : | 624 |
| ISSN : | 1964-8189 |
| En ligne : | http://ejece.revuesonline.com/resnum.jsp |
