Semi-probabilistische Bemessung von Silikon-Klebeverbindungen: Ein Eurocode-konformer Ansatz unter Verwendung der Finiten-Elemente-Methode/Semi-probabilistic design of silicone adhesive joints: A Eurocode-compliant approach using the finite element method

Semi-probabilistic design of silicone adhesive joints: A Eurocode-compliant approach using the finite element method

This paper deals with the application of the semi-probabilistic design concept (Level I, DIN EN 1990) for structural silicone adhesives. First, background information on the safety theory and the general framework of the Eurocode for the derivation of partial material safety factors is given. Then, a specific partial safety factor for the silicone adhesive „DOWSIL 993“ is calibrated on the basis of experimental data and a novel stretch-based limit state function. This partial safety factor was then extended for use in finite element calculation programs in such a way that it is now possible for the first time to perform static calculations of silicone-adhesive joints independent of discretization. An example for the static proof of a bonded facade construction using finite element calculation shows the application of EC-0 to silicone adhesives and the transfer of the EC-0 method to the finite element method with the result that mesh-independent loads can be determined.