Beitrag zur Betrachtung von Zweischeiben-Isolierverglasungen unter klimabedingten Drucklasten - Teil 2: Validierung

This article presents the experimental validation of the simple algorithm for determining the deflection of double glazed units under climate-induced pressure loads which was presented in the first part of this double-publication [3]. For nine double glazed units - all of which are different in terms of format and plate stiffness - the effect of a stepwise increase of temperature from room temperature up to 80 °C on the deformation of the pane centre is experimentally examined and analysed by different procedures. All measurement results will be contrasted with calculation results and will be numerically compared to them, so that a general overview over the accuracy of the procedure will be generated. Additionally, by statistical analysis, it will be shown, which properties of the insulating glass have a systematic impact on the relative accuracy of the prediction and of which magnitude this is. Finally, some qualitative causal hypotheses concerning the main effects are formulated and tested.