This paper describes a fully three-dimensional transient finite element method for calculating the flow behavior and fiber orientation during filling of injection molded parts. The material anisotropy behavior is modeled by using the Doi-Doraiswamy-Metzner model. Numerical results, involving the filling of a rectangular plate and a test specimen part, emphasizing the importance of non isothermal flow and the three-dimensional coupling calculations between the flow and orientation, are presented.
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