Adaptive coupled arbitrary Lagrangian–Eulerian finite element and meshfree method for injection molding process

2008 ◽  
Vol 73 (8) ◽  
pp. 1153-1180 ◽  
Author(s):  
Xikui Li ◽  
Qinglin Duan ◽  
Xianhong Han ◽  
D. C. Sheng
Keyword(s):  
Finite Element ◽  
Injection Molding ◽  
Meshfree Method ◽  
Injection Molding Process ◽  
Arbitrary Lagrangian Eulerian ◽  
Molding Process

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

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
Jang Min Park ◽  
Seong Jin Park
Keyword(s):  
Finite Element ◽  
Injection Molding ◽  
Fiber Orientation ◽  
Flow Model ◽  
Three Dimensional ◽  
Coupled Analysis ◽  
Injection Molding Process ◽  
Molding Process ◽  
Orientation Tensor ◽  
Closure Approximations

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.

Optimal Design for Injection Molding Process Using Design of Experiments and Finite Element Analysis

2000 ◽  
Author(s):  
K. Park ◽  
J. H. Ahn ◽  
S. R. Choi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Optimal Design ◽  
Injection Molding ◽  
Design Of Experiments ◽  
Process Parameters ◽  
Injection Molding Process ◽  
Mold Design ◽  
Molding Process ◽  
Element Analysis

Abstract The present work concerns optimal design for the injection molding process of a deflection yoke (coil separator). The optimal design for the injection molding process is developed using design of experiments and finite element analysis. Two design of experiments approaches are applied such as: the design of experiment for mold design and the design of experiments for determination of process parameters. Finite element analyses have been carried out as a design of experiments for mold design: runner system and cooling channel. In order to determine optimal process parameters, experiments have been performed for various process conditions with the design of experiments scheduling.

Integrative Analysis of the Injection Molding Process and Mechanical Behavior of Plastic Part

2013 ◽  
Vol 705 ◽  
pp. 181-186
Author(s):  
Qing Wen Zhang ◽  
Ying Jie Xu ◽  
Wei Hong Zhang ◽  
Jun Wang
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Injection Molding ◽  
Mechanical Behavior ◽  
Manufacturing Process ◽  
Mechanical Performance ◽  
Integrative Analysis ◽  
Injection Molding Process ◽  
Plastic Part ◽  
Molding Process

For parts made of plastics, injection molding is a common manufacturing process. Warpage and residual stress induced during the injection molding process have very important influences on the mechanical performance of injection products. In this paper, an integrative analysis of the injection molding process and mechanical performance of plastic parts is proposed. This integrative approach incorporates the effects of the manufacturing process in the mechanical simulation: (a) firstly, the finite element package MoldFlow is used to simulate the injection molding process and obtain the warpage and residual stress results. (b) Then the finite element model of plastic part including the process induced warpage and residual stress is established. Explicit dynamic finite element program LS-DYNA is used to simulate the mechanical behaviors of the molded part. Based on the integrative analysis, the influences of injection molding process parameters on mechanical behavior of a PC windshield against impact loading are studied.

Filling Behavior of Polymer Material into Sub-^|^mu;m Structure in Injection Molding Process

2013 ◽  
Vol 133 (4) ◽  
pp. 105-111
Author(s):  
Chisato Yoshimura ◽  
Hiroyuki Hosokawa ◽  
Koji Shimojima ◽  
Fumihiro Itoigawa
Keyword(s):  
Injection Molding ◽  
Polymer Material ◽  
Injection Molding Process ◽  
Molding Process
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