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Modelling anisotropic damage and permeability of mortar under dynamic loads / Chen, Wen in European journal of environmental and civil engineering, Vol. 15 N° 5 (Mai 2011) 

Public ISBD [article]  in European journal of environmental and civil engineering > Vol. 15 N° 5 (Mai 2011) . - pp. 727-742 Titre : Modelling anisotropic damage and permeability of mortar under dynamic loads Type de document : texte imprimé Auteurs : Chen, Wen, Auteur ; Olivier Maurel, Auteur ; Thierry Reess, Auteur Année de publication : 2011 Article en page(s) : pp. 727-742 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Microstructure  Permeability  Damage  Cracking  Mortar Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper deals with the development of a model for concrete subjected to dynamic loads. Shock waves are generated by Pulsed Arc Electro-hydraulic Discharges (PAED) in water and applied to mortar samples. A diphasic model (liquid water and vapour) is implemented in order to describe the electrical discharge and the propagation of shock waves in water. An anisotropic damage model is devised, which takes account of the strain rate effect and the crack closure effect. Coupling between anisotropic damage and permeability is proposed in order to assess the variation of material permeability due to shock waves. Comparisons with experiments show a good correlation between the experimental and the numerical results. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/article.jsp?articleId=16144 [article] Modelling anisotropic damage and permeability of mortar under dynamic loads [texte imprimé] / Chen, Wen, Auteur ; Olivier Maurel, Auteur ; Thierry Reess, Auteur . - 2011 . - pp. 727-742. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 15 N° 5 (Mai 2011) . - pp. 727-742 Mots-clés : Microstructure  Permeability  Damage  Cracking  Mortar Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper deals with the development of a model for concrete subjected to dynamic loads. Shock waves are generated by Pulsed Arc Electro-hydraulic Discharges (PAED) in water and applied to mortar samples. A diphasic model (liquid water and vapour) is implemented in order to describe the electrical discharge and the propagation of shock waves in water. An anisotropic damage model is devised, which takes account of the strain rate effect and the crack closure effect. Coupling between anisotropic damage and permeability is proposed in order to assess the variation of material permeability due to shock waves. Comparisons with experiments show a good correlation between the experimental and the numerical results. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/article.jsp?articleId=16144