Korea-Australia Rheology Journal

  • 제12권2호
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  • Pages.125-133
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  • 2000
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  • 1226-119X(pISSN)
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  • 2093-7660(eISSN)
한국유변학회 (The Korean Society of Rheology)
권호 표지

Applications of recently proposed closure approximations to injection molding filling simulation of short-fiber reinforced plastics

  • Chung, Du-Hwan (Department of Mechanical Engineering, Pohang University of Science and Technology) ;
  • Kwon, Tai-Hun (Department of Mechanical Engineering, Pohang University of Science and Technology)
  • 발행 : 2000.06.01
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초록

The present work is aimed at performing injection molding filling simulation of fiber suspension in polymer based matrix. The numerical simulation incorporates the coupling effect between the flow field and the fiber orientation state together with in-plane velocity gradient effect with recently proposed closure approximations. Predicted orientation components are compared with available experimental data of a film-gated strip and a center-gated disk. Predictions with IBOF closure approximation show excellent behaviors with regard to accuracy and numerical efficiency. However, predicted results seem to have consistent errors in comparison with experimental data. Diffusivity term which accounts for fiber-fiber interaction might have to be modified.

키워드

참고문헌

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