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978-3-8439-1969-2, Reihe Ingenieurwissenschaften
A Simulation Approach of Permeability Prediction for RTM Process Simulation (Band 10)
169 Seiten, Dissertation Technische Universität München (2014), Softcover, A5
Following the trend of growing fiber composite materials usage, process automation and increasing component complexity, there arises a need for process simulation. The work presented here addresses a fast and robust characterization method of permeability for RTM process modeling. A simulation approach is presented based on fabric images, image processing and textile modeling.
For validation of the simulation approach a two-step validation approach was followed. At first, a test setup for permeability testing was developed and put into service. A test campaign focusing on non-crimp fabrics (NCF) gave the permeability results for comparison of material data. In a second step the simulation approach was employed to predict the fill time and flow front pattern of a complex component. The permeability results from experiments and the simulation approach showed excellent correlation for two biaxial non-crimp fabrics. For the fill time prediction of the RTM component, the simulation approach gave the best results and the flow front pattern could be predicted reasonably well.