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Project leader: Prof. Dr.-Ing. H. Palkowski (Institute of Metallurgy), Prof. Dr.-Ing. St. Hartmann (Institute of Engineering Mechanics)
Funding period: 3 years (2012 - 2015)
Funding body: DFG
Funding code: -
In this project, a sheet-shaped composite material with metallic cover and polymer core layers is to be investigated. In addition to the properties of the respective monomaterials, the layer thickness of the sandwich partners plays an important role. Knowledge of these dependencies is not yet available and is to be gained in this project. For this purpose, the characteristic values of selected sandwich composites, consisting of a PP-PE film as a core layer and cover layers made of a deep-drawing steel, each with different layer thickness combinations, are to be characterized with different experimental tests, and their forming behaviour is to be analysed in deep-drawing and bending tests. The results of these experimental investigations are a prerequisite for the numerical analysis of these composite materials. For this purpose, temperature-dependent material models of the individual composite partners are developed, implemented and used for validation. The desired mathematical description of the properties serves to minimize the time-consuming experimental implementation. In addition, the characteristic values are required for the development of a property matrix in order to be able to determine the best possible material and layer thickness combination for given boundary conditions in advance.