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Peeling of metal foil from a compliant substrate
Department of Mechanical Engineering, Blekinge Institute of Technology, Karlskrona, Sweden.
University of Skövde, School of Engineering Science. University of Skövde, The Virtual Systems Research Centre. (Virtual Manufacturing Processes)
2019 (English)In: The journal of adhesion, ISSN 0021-8464, E-ISSN 1563-518XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

Large displacement peel was studied for cases where a compliant substrate leads to a large value of the root rotation. An existing simplified beam model to calculate the peel fracture energy was modified to allow for a kinematic hardening beam model of the foil. The steady-state peel force and the root rotation were used as input data to the resulting analytical beam model. Test results from the literature were analysed. A more elaborate finite element model was also studied, using cohesive elements for the interface layer between the foil and the substrate. The cohesive zone parameters used were the fracture energy, the cohesive strength and a shape parameter. An optimization scheme for the cohesive zone parameters was developed and optimized against experimental steady-state peel force and root rotation. The optimization scheme was effective to characterize the cohesive parameters. The method yields similar values of fracture energy for the two peel angles, with the one for being slightly higher than for . The difference in fracture energies for different peel angles suggests that the fracture energy can be mode dependent.

Place, publisher, year, edition, pages
Taylor & Francis, 2019.
Keywords [en]
Peel, laminate, fracture energy, cohesive law, optimization
National Category
Applied Mechanics
Research subject
Virtual Manufacturing Processes
Identifiers
URN: urn:nbn:se:his:diva-18033DOI: 10.1080/00218464.2019.1696678ISI: 000502676600001Scopus ID: 2-s2.0-85076878334OAI: oai:DiVA.org:his-18033DiVA, id: diva2:1381711
Available from: 2019-12-27 Created: 2019-12-27 Last updated: 2020-01-02Bibliographically approved

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Alfredsson, K. Svante

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