Parametric numerical investigation of adhesive laminated point connections

Manuel Santarsiero, Christian Louter, Jean-Paul Lebet

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

6 Citations (Scopus)

Abstract

The recent demand for architectural transparency has drastically increased the use of glass material for structural purpose. However, connections between structural glass members represent one of the most critical aspects of glass engineering, due to the fragile behaviour of this material. In that regard, research activities on a novel type of metal-to-glass adhesive connections (called laminated connections) are currently on-going at EPFL. These joints make use of transparent thin polymer foils - i.e. an ionomer polymer (SentryGlas® from Dupont) and a structural silicon (TSSA from Dow Corning) – that are cured by an autoclave lamination process. The research activities involve both experimental and numerical studies with the aim to develop a design model and failure criterion for laminated connections. In this paper, the nonlinear numerical investigations on the behaviour of this type of adhesive joints are presented. In particular, the effects of mechanical and geometrical parameters on the response of the laminated connections are studied by non-linear modeling. The results are obtained performing several numerical simulations varying the parameters’ values and monitoring the related effects. Strong non-linearity in both strain and stress field distributions are observed, even in case of simple load conditions. The results suggest that, with the purpose of performing numericalexperimental comparisons, precise measurements have to be performed since very small displacements are to be expected. Additionally, an appropriate modeling of both boundary conditions (realized by the test setup) and adherents’ deformations (of both steel and glass adherent) is necessary.
Original languageUndefined/Unknown
Title of host publicationProceedings of the COST Action TU0905, Mid-term Conference on Structural Glass
EditorsJan Belis, Christian Louter, Danijel Mocibob
Place of PublicationLondon
PublisherTaylor & Francis
Pages507-516
Number of pages10
ISBN (Print)978-1-138-00044-5
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • laminated connections
  • non linear numerical analysis
  • parametrical analysis
  • glass structures
  • adhesive connections

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