Adaptive Structural Optimization of Technical Fibre Composites under Consideration of Bionic Aspects - Industrial Applications

The object of the presentation is the development o f a topology optimization tool for designing fibre- plastic composite structures which is appropriate for each material involved. The main goal of this algorithm is maximum stiffness with as even a distribution of te nsion as possible throughout the component, which i s achieved by distributing the load from high-load to lower load bearing areas, thereby optimizing mater ial distribution. The weight optimization of specific c omponents is possible in this way. As continues to be shown, the developed adaptive topology and fibre angle opt imization is beneficial from a technological, mater ialmechanical and economical point of view, and can be applied in everyday practice without any problems. The comparison of theoretical and practical experiments with carbon fibre reinforced plastic prototypes is followed by the display of the weight, stability and stiffne ss characteristics of the optimization method by me ans of numerical examinations of FE models. On the basis of these numerical examinations, it has proven possi ble to develop a method which optimizes the topology and orientation of every single fibre layer of an entire laminate in a simple manner. The result produced is a struct ural recommendation which complies with the performance capacity of the FPC. The basic orientation of the base layer, the orientation of the individual lamin ate layers in a manner appropriate to the power flux, as well as th e topology of bonding layers and/or the entire lami nate are optimized in this design recommendation. Of particu lar interest here is the adaptive structural optimi zation of FPC structures with localized bonding to high-load bearing power introduction points or generally, in areas with high tension. The structural optimization of FPC is already done automatically on relatively large com ponents. It has been used several times in practical applicatio ns and has produced convincing results through sign ificant improvements to the structural properties of the op timized components .