Measurement of stress in multicoat systems / Annelies E. Boerman in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 881 (06/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 881 (06/1998) . - p. 69-75 Titre : Measurement of stress in multicoat systems Type de document : texte imprimé Auteurs : Annelies E. Boerman, Auteur ; Dan Y. Perera, Auteur Année de publication : 1998 Article en page(s) : p. 69-75 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Contraintes (mécanique) Couches minces multicouches Modèles mathématiques Revêtements Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques Revêtements multicouches Index. décimale : 667.9 Revêtements et enduits Résumé : Mathematical relationships to calculate the stress in each layer of a multicoat system are derived. They were verified for a bi- and a trilayer acrylic/melamine system by comparing the thermal stress values determined from the derived equations with those calculated from an equation which requires the knowledge of the layers’ properties (elastic modulus, Poisson’s ratio, and glass transition temperature).Experimental procedures for coating systems unaffected and affected by multiple application and curing are described, and a few cases met in practice are presented. This study should provide a better understanding of the interactions between various layers of a multicoat system, and the damage (delamination, cracking) which might result from them. Note de contenu : - DERIVATION OF MATHEMATICAL RELATIONSHIPS : Single-coat systems - Multicoat systems - USE OF THE EQUATION : Ideal case - Thermally instable coatings - VERIFICATION OF MATHEMATICAL EQUATIONS - PRACTICAL APPLICATION OF THE DERIVED EQUATIONS Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18012 [article]

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