Abstract
This paper illustrates investigations regarding the infiltration process of the thixotropic cast-alloy AlSi7Mg0,3 into laminated fibre woven fabrics by Fluid-Structure Interaction Analysis (FSI). As results of such FSI-Analysis on the one hand the kinematical behaviour of the reinforcement due to the infiltration process on the macroscopic and microscopic level on the other hand fluiddynamical effects of the regarded alloy are achieved. Thus in the run-up to timeconsuming and cost-intensive experiments, informative bases like fluidic optimizing of the cavity or the configuration and insertion of the reinforcement component can be numerically developed. Furthermore a reliable prediction of transient permeability of the fibre fabric is possible, which effects the infiltration process significantly. Numerical input data such as rheological parameters characterizing the behaviour of partial solidified alloys have been conducted. Therefor basic rheological tests of the aluminium cast-alloy AlSi7Mg0,3, like `HYSTERESIS TESTS´, `SHEAR RATE JUMP TESTS´ and detection of `STATIC´ and `DYNAMIC YIELD POINTS´ and the `DIFFERENTIAL STRUCTURAL PARAMETER´ have been conducted. Furthermore `EVOLUTION OF VISCOSITY´ has been correlated with thermodynamical calculations using ThermoCalc®. Finally the infiltration of a textile semi-finished part (carbon fibre fabric / canvas bonding) by A356 is discussed as an example to demonstrate the feasibility of FSI-Analysis, taking into account a two-way coupling between the interacting CSM- and CFD-Codes.
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