| Titre : |
Damage morphology and force-deflection curves for impact loading of thick multilayer organic protective coating systems |
| Type de document : |
texte imprimé |
| Auteurs : |
A. W. Momber, Auteur ; M. Irmer, Auteur ; D. Kelm, Auteur ; V. Cherewko, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 857-878 |
| Note générale : |
Errata. Author correction p. 1171 - Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse de dommages (matériaux)
Analyse morphologique
Endommagement (mécanique)
Essais de résilience
Essais dynamiques
Impact (mécanique)
Revêtements -- Fissuration
Revêtements multicouches
Revêtements organiques
Structures offshore
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The response of organic coatings to mechanical impact is crucial to their corrosion protection performance, particularly under offshore conditions. The paper categorizes and discusses four different types of response during the high-energy (3 to 20 J) impact of a falling ball-shaped weight on 14 multilayer organic offshore coating systems. The response types include plastic deformation, brittle (compressive) crushing, radial crack formation, and lateral delamination. Threshold and transition conditions are analyzed based on contact mechanics relationships. For the first time, complete force-deflection curves for this type of coating are recorded with an instrumented impact tester. The curves feature four characteristic points, namely a first local force maximum (FFS), the respective deflection at this force level (δFS), a maximum force (Fmax), and the respective deflection at this maximum force (δmax). These characteristic parameters are discussed in terms of coating system composition. Empirical equations for these parameters as well as for the damage size are derived. The results offer opportunities to quantitatively rank organic coatings with respect to their impact resistance. |
| Note de contenu : |
- MATERIALS AND EXPERIMENTAL SETUP : Investigated coating systems - Impact testing device
- RESULTS AND DISCUSSION : Damage patterns - Force-deflection diagrams - Damage size
- Appendix : Damage morphologies and force-deflection curves |
| DOI : |
https://doi.org/10.1007/s11998-023-00829-9 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-023-00829-9.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41063 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 3 (05/2024) . - p. 857-878
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