Infiltration of Z-direction Injection RTM Process Based on Ex-situ Toughening Technology

被引：1
|
作者：
Dong S.-H. [1 ]
Li W.-D. [2 ]
Ding Y.-Y. [3 ]
Jia Y.-X. [4 ]
Liu G. [2 ]
Wei C.-C. [1 ]
机构：
[1] School of Materials Science and Engineering, Shandong University of Technology, Zibo, 255049, Shandong
[2] Composite Center, AVIC Composite Corporation Ltd., Beijing
[3] Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, School of Materials Science & Engineering, University of Jinan, Jinan
[4] Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials, Ministry of Education, Shandong University, Jinan
来源：
Dong, Shu-Hua (dongshuhua@sdut.edu.cn) | 1600年 / Beijing Institute of Aeronautical Materials (BIAM)卷 / 45期
关键词：
Ex-situ toughening; Finite element simulation; RTM process; Unsteady infiltration;
D O I：
10.11868/j.issn.1001-4381.2016.001418
中图分类号：
学科分类号：
摘要：
Aimed at ex-situ toughening technology and Z-direction RTM process, Darcy's law was modified by introducing the saturation parameter. The partial differential equation describing the unsteady flow of the resin in the fiber preform was established. The effect of process parameters such as volume flow rate, resin viscosity and fiber preform's permeability during the constant flow process on the injection pressure was investigated. The resin flow between intra-tow and inter-tow of the preform with untoughened layers and toughened layers was simulated. The results show that the numerical simulation results are reliable. The inner pressure in the fiber performs increases with the increase of injection time. The injection pressure increases linearly with the increase of volume flow rate and resin viscosity, while decreases with the increase of fiber preform's permeability, which accords with Darcy's law. The infiltration visualization of resin flow through meso-scale and micro-scale fiber preform is realized, which provides an important supplement for prediction of the macro-flow in fiber preforms and provides guidance for actual process. © 2017, Journal of Materials Engineering. All right reserved.
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页码：52 / 58
页数：6
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