Mechanical properties depending on fiber orientation in injection molded short-fiber-reinforced plastic parts
- Pohang Univ. of Science and Technology (Korea, Democratic People`s Republic of)
In injection molding of short-fiber-reinforced plastics, the fiber orientation during a mold filling process is determined by the flow field, while it is in turn affected by the orientation state of fibers. The Dinh and Armstrong`s orientation-dependent constitutive equation for fiber suspension was thus incorporated into the coupled analysis of mold filling flow and fiber orientation including the additional stresses due to the existence of fibers. The mold filling simulation was then performed by solving a new pressure equation and the energy equation via a finite element/finite difference method as well as evolution equations for the second-order orientation tensor via the fourth-order Runge-Kutta method. With the fiber orientation known, predictions of the anisotropic mechanical properties of the composites are obtained by using the Halpin-Tsai equations for unidirectional composites and taking an orientation average.
- OSTI ID:
- 603016
- Report Number(s):
- CONF-961108-; TRN: 98:001968-0105
- Resource Relation:
- Conference: Annual meeting of the American Institute of Chemical Engineers (AIChE), Chicago, IL (United States), 10-15 Nov 1996; Other Information: PBD: 1996; Related Information: Is Part Of 1996 First joint topical conference on processing, structure and properties of polymeric materials; PB: 594 p.
- Country of Publication:
- United States
- Language:
- English
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