Applicability of the impact response analysis method for reinforced concrete beams mixed with polyvinyl alcohol short fibers / Abbas Qaisar Bhatti in INTERNATIONAL POLYMER PROCESSING, Vol. XXVI, N° 5 (11/2011)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXVI, N° 5 (11/2011) . - p. 470-477 Titre : Applicability of the impact response analysis method for reinforced concrete beams mixed with polyvinyl alcohol short fibers Type de document : texte imprimé Auteurs : Abbas Qaisar Bhatti, Auteur ; N. Kishi, Auteur ; K. Shameem, Auteur Année de publication : 2011 Article en page(s) : p. 470-477 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alcool polyvinylique Analyse numérique Béton renforcé de fibres Elastoplasticité Eléments finis, Méthode des Modélisation tridimensionnelle Résistance au chocs Index. décimale : 668.4 Plastiques, vinyles Résumé : The impact-resistant capacity of reinforced concrete (RC) structures can be rationally upgraded by mixing polyvinyl alcohol (PVA) short fibers into concrete. The static and dynamic post peak residual tensile strength of the concrete that occurs because of the bridge effects of PVA short fibers. In this paper, to establish a simple impact response analysis method for RC structures under impact loading, a method that treats PVA short fibers mixed into concrete as shell elements of PVA plates with an equivalent tensile strength to the post peak residual tensile strength of the concrete is proposed. The applicability of the method has been investigated by conducting a three-dimensional elastoplastic finite element analysis using LS-DYNA code and comparing the results with the falling-weight impact test results for RC beams. From this study, it was confirmed that the crack distributions and the failure mode of RC beams mixed with PVA short fibers can be predicted and that the effects of mixing PVA short fibers on improving the impact resistant capacity can be estimated by using the proposed numerical analysis method. DOI : 10.3139/217.2405 En ligne : https://drive.google.com/file/d/1NxUqxI4FPFyaGSAqTCO7heMzWaInDVPq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12462 [article]

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