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Squeeze flow of viscoplastic cement-based extrudate / Zongjin Li in Journal of engineering mechanics, Vol. 133 N°9 (Septembre 2007) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 133 N°9 (Septembre 2007) . - pp. 1003-1008 Titre : Squeeze flow of viscoplastic cement-based extrudate Type de document : texte imprimé Auteurs : Zongjin Li, Auteur ; Xiangyu Li, Auteur Année de publication : 2007 Article en page(s) : pp. 1003-1008 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Cement  Flow  Strain  rates  Viscoplasticity Résumé : In this study, squeeze flow of viscoplastic cement-based extrudate has been investigated and a solution for the squeeze force as a function of the squeezing speed and other material parameters derived. The viscoplastic strain rates are obtained from the associated flow rule, which relates the strain rate to deviatoric stress through the coaxiality relation. For simplicity, the elastic response is neglected. The parameter study has shown that the upsetting process of cement-based extrudate can be predicted by the solution. The computed results have been used to compare with results of experiments conducted upon viscoplastic paste material. A reasonable agreement is observed. ISSN : 0733-9399 En ligne : http://cedb.asce.org/cgi/WWWdisplay.cgi?160478 [article] Squeeze flow of viscoplastic cement-based extrudate [texte imprimé] / Zongjin Li, Auteur ; Xiangyu Li, Auteur . - 2007 . - pp. 1003-1008. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 133 N°9 (Septembre 2007) . - pp. 1003-1008 Mots-clés : Cement  Flow  Strain  rates  Viscoplasticity Résumé : In this study, squeeze flow of viscoplastic cement-based extrudate has been investigated and a solution for the squeeze force as a function of the squeezing speed and other material parameters derived. The viscoplastic strain rates are obtained from the associated flow rule, which relates the strain rate to deviatoric stress through the coaxiality relation. For simplicity, the elastic response is neglected. The parameter study has shown that the upsetting process of cement-based extrudate can be predicted by the solution. The computed results have been used to compare with results of experiments conducted upon viscoplastic paste material. A reasonable agreement is observed. ISSN : 0733-9399 En ligne : http://cedb.asce.org/cgi/WWWdisplay.cgi?160478