Proceedings of the 16th European Conference on Composite Materials (ECCM) pages:68-69
European Conference on Composite Materials (ECCM) edition:16 location:Seville date:22-26 June 2014
A recently developed glass fibre reinforced PU-foam sandwich panel is mechanically characterized in the current research. Due to the in situ formation of the different components of the sandwich structure, specific experimental techniques are required for this purpose. Compression testing on the complex foam core and tensile testing on milled samples of the skin revealed the stiffness of both sandwich components. The thickness of the sandwich skins was determined by image processing of CT-scans. This thickness was shown to decrease with an increasing density of the complex foam core. Finally the obtained data and models were used to develop a simple software tool to predict the bending stiffness of the sandwich panel with an accuracy of +/-10%. Moreover the software tool identifies possible future material developments.