Analysis of the melting and solidification process of aluminum in a mirror furnace using Fiber-Bragg-Grating and numerical models

Abstract In the search of an adequate real time strain measurement method in aluminum casting, use Fiber-Bragg-Grating ( FBG ) is being investigated with great interest. order to do so, behaviour glass fiber sensors a liquid aluminium alloy at temperatures up 750°C experimentally analysed laboratory environment. For better process understanding simulation composite conducted. optical method, which uses engraved Bragg reflectors 125 µm diameter thick fiber. This reflector transmits most wavelengths but only reflects one specific wavelength. wavelength can be measured and changes due axial on grating by fluid reaction temperature. Using so-called mirror furnace, several experiments are evaluated. These measurements also basis for further hot tearing. The data gathered during campaign - both numerical experimental used parameterize simulation. As result, expanded digital twin modeled MATLAB’s partial differential equation toolbox.