NUMERICAL-SIMULATION OF FIBER ORIENTATION IN INJECTION-MOLDING OF SHORT-FIBER-REINFORCED THERMOPLASTICS
SCIE
SCOPUS
- Title
- NUMERICAL-SIMULATION OF FIBER ORIENTATION IN INJECTION-MOLDING OF SHORT-FIBER-REINFORCED THERMOPLASTICS
- Authors
- CHUNG, ST; KWON, TH
- Date Issued
- 1995-04
- Publisher
- SOC PLASTICS ENG INC
- Abstract
- The present study develops a numerical simulation program to predict the transient behavior of fiber orientations together with a mold filling simulation for short-fiber-reinforced thermoplastics in arbitrary three-dimensional injection mold cavities. The Dinh-Armstrong model including an additional stress due to the existence of fibers is incorporated into the Hele-Shaw equation to result in a new pressure equation governing the filling process. The mold filling simulation is performed by solving the new pressure equation and energy equation via a finite element/finite difference method as well as evolution equations for the second-order orientation tenser via the fourth-order Runge-Kutta method. The fiber orientation tenser is determined at every layer of each element across the thickness of molded parts with appropriate tenser transformations for arbitrary three-dimensional cavity space.
- Keywords
- HOMOGENEOUS FLOWS; SUSPENSIONS; PREDICTION; TENSORS; STATE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21807
- DOI
- 10.1002/pen.760350707
- ISSN
- 0032-3888
- Article Type
- Article
- Citation
- POLYMER ENGINEERING AND SCIENCE, vol. 35, no. 7, page. 604 - 618, 1995-04
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