Method for simulating a fiber orientation in an injection-molded component made of a fiber-reinforced plastic and design method for designing an injection-molded component made of a fiber-reinforced plastic

摘要

A method (100) is proposed for simulating a fiber orientation in an injection-molded component made of a fiber-reinforced plastic, with a macroscopic simulation of the injection molding being used to determine an orientation of the fibers in the injection-molded component to be produced after the injection molding and using the macroscopic simulation of the injection molding macroscopic physical parameters of the fiber-reinforced plastic takes place. It is also provided that, in the macroscopic simulation, a temporal development of the fiber orientation tensor Ä is determined using a combination of two macroscopic models, a first temporal development of the fiber orientation tensor ȦS being determined using a first macroscopic model (111) on the basis of shear flows and a second temporal development Development of the fiber orientation tensor Ȧe is determined via a second macroscopic model (112) on the basis of elongation flows. Another aspect of the invention relates to a design method for designing an injection-molded component made of a fiber-reinforced plastic.