USING OF MULTISCALE APPROACH FOR DEFINING MECHANICAL PROPERTIES OF INJECTION MOULDED COMPOSITE PART
Method for developing of structure model for fiber-reinforced composite material investigated to make possible carrying out structural analysis. The method is founded on a mean field homogenization framework and can take into account fiber distribution and orientation. Modern CAE-systems modeling casting process parameters can offer only on the basis of the recommended parameters of the processing of the material. The choice of optimal parameters remains for technology and optimization of such parameters should be carried out by appropriate methods, including built-in CAE-system (eg, Taguchi method). However, to verify a particular numerical model requires its calibration to eliminate errors in the divergence of the boundary conditions for the simulation and actual process parameters, because model is always a simplification. In particular, it is possible to control the profiles of the theoretical and experimental flow and estimate the difference between them.Approbation of the method was made with finite-element simulation of injection moulding of gas-turbine engines’ stator blade made of carbon fiber-reinforced polyether ether ketone. Multiscale approach based on obtained fiber distribution and orientation provide input data for calculating materials’ anisotropic behavior as a representative volume element. As a result these properties was mapped to finite-element mesh for exporting to structural analysis CAE software.