Novel OpencellT metal sandwich panel concept: design, manufacture and properties

Mika Sirén, Antonio Valente, Jukka Säynäjäkangas

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific


    All-metal sandwich panels offer numerous outstanding properties allowing the designer to develop light and efficient structural configurations for a large variety of applications. The most established type of all-metal sandwich panels is using directional stiffeners between solid surface sheets. Characteristic of these panels is, however, the heterogeneity of strength and/or stiffness properties in longitudinal and transverse directions. Sandwich panel technology development towards lattice truss concepts has resulted in a completely new metal panel idea called OpencellT. Instead of a conventional three constituent panel structure (sheet/core/sheet), a combination of cut-and-formed core and single solid sheet element is used, resulting in higher degree of design variables for tailored properties. Other key benefits of the OpencellT technology are reduction of the number of structural elements, and hence manufacturing phases and eventually weight. This paper describes the design and optimisation of prototype OpencellT panels, their manufacture, and test results from static and fatigue bending type tests.
    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publication7th European Stainless Steel Conference - Science and Market, Como, Italy 21 - 23.9.2011
    PublisherAssociazione Italiana di Metallurgia AIM
    ISBN (Electronic)9788885298842
    Publication statusPublished - 2011
    MoE publication typeB3 Non-refereed article in conference proceedings


    • all-metal sandwich panel
    • stainless steel
    • structural optimisation
    • manufacture
    • testing


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