A review on the theories and numerical methods for injection molding simulations

被引：0
|
作者：
Cao W. [1 ]
Ren M. [2 ]
Liu C. [1 ]
Ruan S. [2 ]
Shen C. [1 ,2 ]
机构：
[1] National Engineering Research Center of Mold & Die, Zhengzhou University, Zhengzhou
[2] Department of Engineering Mechanics, Dalian University of Technology, Dalian
来源：
Zhongguo Kexue Jishu Kexue/Scientia Sinica Technologica | 2020年 / 50卷 / 06期
关键词：
Boundary element method; Constitutive model; Finite element method; Injection molding; Meshless method; Multiscale simulation; Numerical simulation;
D O I：
10.1360/SST-2019-0389
中图分类号：
学科分类号：
摘要：
Over the past two decades, numerical simulation of injection molding has made great progress, not only with its increasingly widespread use, but also with problems and challenges such as unreliable simulated performance, difficulty integrating commercial software with new methods, and inadequate consideration of microscopic mechanisms. This paper thoroughly explores the historical development of injection molding theoretical models and the key results of each point, and briefly introduces multiscale simulation methods. The characteristics and spectrum of application of the substance constitutive models are studied, and the effects of crystallization on the state and constitutive equations are demonstrated. Therefore, the characteristics of numerical methods for solving problems with injection molding are analyzed, and the variations between viscous and viscoelastic methods are studied. Analysis of the advantages and disadvantages of methods of flow front monitoring was performed. Also, simulations were implemented with the meshless approach for filling flow for certain special physical phenomena such as the fountain flow. The paper also forecasts the growth patterns and urgent problems of simulating injection molding based on examining and testing existing theories, algorithms, and the real demands of the plastics processing industry. © 2020, Science Press. All right reserved.
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页码：667 / 692
页数：25
相关论文
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