Modeling and Simulation of Fiber Orientation in Injection Molding of Polymer Composites

Jang Min Park and Seong Jin Park

Mathematical Problems in Engineering, 2011, vol. 2011, 1-14

Abstract:

We review the fundamental modeling and numerical simulation for a prediction of fiber orientation during injection molding process of polymer composite. In general, the simulation of fiber orientation involves coupled analysis of flow, temperature, moving free surface, and fiber kinematics. For the governing equation of the flow, Hele-Shaw flow model along with the generalized Newtonian constitutive model has been widely used. The kinematics of a group of fibers is described in terms of the second-order fiber orientation tensor. Folgar-Tucker model and recent fiber kinematics models such as a slow orientation model are discussed. Also various closure approximations are reviewed. Therefore, the coupled numerical methods are needed due to the above complex problems. We review several well-established methods such as a finite-element/finite-different hybrid scheme for Hele-Shaw flow model and a finite element method for a general three-dimensional flow model.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:105637

DOI: 10.1155/2011/105637

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