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Titel: Effect of Subsurface Microstructures on Adhesion of Highly Confined Elastic Films
VerfasserIn: Samri, Manar
Kossa, Attila
Hensel, René
Sprache: Englisch
Titel: Journal of applied mechanics
Bandnummer: 88
Heft: 3
Verlag/Plattform: ASME
Erscheinungsjahr: 2021
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Polymer adhesive films sandwiched between two rigid solids are a common bonding strategy. The mechanics and consequently the adhesion of such geometrically confined films depend mainly on their thickness, Young's modulus, and the Poisson's ratio of the material. In this work, we explore the effect of a micropatterned subsurface embedded into the adhesive layer. We compare experiments with three-dimensional numerical simulations to evaluate the impact of the microstructure on the contact stiffness and effective modulus. The results are used to extend a previously proposed size scaling argument on adhesion from incompressible to slightly compressible films to account for the silicone used in our study with a Poisson's ratio of 0.495. In addition, interfacial stress distributions between the elastic film and the glass disc are obtained from plane strain simulations to evaluate characteristic adhesion failures such as edge cracks and cavitation. Overall, the micropatterned subsurface has a large impact on the contact stiffness, the interfacial stress distribution, and the detachment behavior; however, the adhesion performance is only slightly improved in comparison to a non-patterned subsurface.
DOI der Erstveröffentlichung: 10.1115/1.4049182
URL der Erstveröffentlichung: https://asmedigitalcollection.asme.org/appliedmechanics/article/88/3/031009/1091680/Effect-of-Subsurface-Microstructures-on-Adhesion
Link zu diesem Datensatz: hdl:20.500.11880/31433
http://dx.doi.org/10.22028/D291-33893
ISSN: 1528-9036
0021-8936
Datum des Eintrags: 25-Jun-2021
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Materialwissenschaft und Werkstofftechnik
Professur: NT - Keiner Professur zugeordnet
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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