| Numerical Simulation of Residual Stress in Injection Molding |
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| 引用本文： | XI Guo-dong,ZHOU Hua-min,LI De-qun (State Key Laboratory of Mold &Die Technology,Huazhong University of Science and Technology,Wuhan 430074,China). Numerical Simulation of Residual Stress in Injection Molding[J]. 计算机辅助绘图.设计与制造(英文版), 2006, 16(1): 17-23 |
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| 作者姓名： | XI Guo-dong ZHOU Hua-min LI De-qun (State Key Laboratory of Mold &Die Technology Huazhong University of Science and Technology Wuhan 430074 China) |
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| 作者单位： | State Key Laboratory of Mold &Die Technology，Huazhong University of Science and Technology，Wuhan 430074，China |
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| 基金项目： | Supported by National Natural Science Foundation Council of the People's Republic of China (20490224) |
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| 摘 要： | 1 Introduction Injection molding is a flexible production technique for the manufacturing of polymer product. A typical injection molding process consists of four stages: filling, packing, cooling and ejection of product. During these processes, residual stress is produced due to high pressure and cooling, which induce the warpage and shrinkage of product. To make the product with high precision, it is important to simulate the pressure and thermal effect induced residual stress in the process…
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| 关 键 词： | 注射膜塑成型 残差应力 数字模拟 热粘度模型 |
Numerical Simulation of Residual Stress in Injection Molding |
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| XI Guo-dong ZHOU Hua-min LI De-qun. Numerical Simulation of Residual Stress in Injection Molding[J]. CADDM, 2006, 16(1): 17-23 |
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| Authors: | XI Guo-dong ZHOU Hua-min LI De-qun |
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| Abstract: | Distribution and history of residual stress in plaque-like geometry are simulated based on linear thermoviscoelastic model, to explore the mechanics and evolution of residual stress in injection molding process. Results show that the residual stress distribution through thickness is almost the same along flowpath and the stress value near the end is a litter higher than that near the gate. |
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| Keywords: | injection molding residual stress numerical simulation thermoviscoelastic model |
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