Discrete element method to predict the mechanical properties of pigmented coatings / Dan Varney in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 6 (11/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 6 (11/2019) . - p. 1683-1689 Titre : Discrete element method to predict the mechanical properties of pigmented coatings Type de document : texte imprimé Auteurs : Dan Varney, Auteur ; Martti Toivakka, Auteur ; Doug Bousfield, Auteur Année de publication : 2019 Article en page(s) : p. 1683-1689 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Eléments discrets, Méthode des Papier Pigments Revêtements -- Fissuration Revêtements -- Propriétés mécaniques Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : The mechanical properties of pigmented coating layers are important in a variety of applications. However, the large number of parameters that influence these properties as well as the numerous types of deformations challenge the prediction of the performance of these systems. A discrete element method (DEM) is proposed to predict the mechanical properties of paper coating layers that have a range of starch and latex content. The model is developed in both 2D and 3D and is adapted to tensile and flexural deformations. The model predictions are compared to experimental results in the literature. The predictions are generally good for the moduli and the strain at failure of the systems, but underpredict the maximum stress. This result may be caused by the complex particle size distribution of the experimental systems or by the impact of the brittleness of the starch when making the freestanding films. DOI : 10.1007/s11998-019-00255-w En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00255-w.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33421 [article]

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