Structural Analysis for Point Fixing of Glass under In-Plane Loads

Iris Maniatis, Technische Universität München

Since now the design of point fitted glazing is a challenging task, because on the one hand no standards exist so far to prescribe a close to reality procedure and one the other hand examinations show that only by complex finite element modelling (3D-elements, contact-elements, etc.) and exact knowledge about material properties and constraint conditions the stress distribution in the drilling area can be determined correctly. Hence the quality of results depends on the knowledge of the finite element user and the precision of modelling.

In this investigation the focus is set on point fixing of glass under in-plane loads. Different analysis methods and parameters are used to determine the stress distribution in the drilling-area. For examination of the complex effects between fitting and glass drilling the principles of contact mechanics are used. To control the quality of the finite element model the results are compared with the theoretical analysis. Additional verification is done by load capacity tests with deflection and strain measurements. Parameter studies with different material properties, geometry and size of the drilling, possible eccentricities are also part of the examination.
The results should supply a contribution to a close to reality procedure for finite element analysis.

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The Authors

Dr. Iris Maniatis Senior Research Engineer University of the German Federal Armed Forces Munich Read more