vartm工艺制备椰子中果皮纤维增强复合材料过程中的树脂流动分析

Q4 Engineering

International Journal of Modern Manufacturing Technologies Pub Date : 2023-06-20 DOI:10.54684/ijmmt.2023.15.1.51

Diego Pico, S. Machado, J. Meza, J. Unfried-Silgado

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引用次数: 0

摘要

树脂传递模塑工艺（RTM）最近出现在液体复合模塑工艺（LCM）行业中。RTM包括将聚合物树脂注射到包含预先布置的增强材料的封闭模具中。在这项工作中，模拟了使用真空辅助树脂转移模塑（VARTM）制备椰子中果皮纤维增强复合材料过程中，矩形模具（310´310´7mm3）内的树脂流动。使用流体体积法（VOF）和达西定律在ANSYS®FLUENT中进行计算流体动力学（CFD）分析。模拟了纤维体积分数（xf）含量为5%、10%、15%和25%的过程。结果表明，当补强剂含量超过25%时，会出现空气截留和模具填充不完全的现象。模拟的填充时间与实验获得的值一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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RESIN FLOW ANALYSIS DURING FABRICATION OF COCONUT MESOCARP FIBER-REINFORCED COMPOSITES USING VARTM PROCESS

Resin transfer molding process (RTM) has recently emerged in liquid composite moulding process (LCM) industry. RTM consists in polymeric resin injection into a closed mold containing a pre-arranged reinforcement material. In this work, the resin flow inside a rectangular mold (310´310´7 mm3) during the fabrication of coconut mesocarp fiber-reinforced composites using vacuum-assisted resin transfer molding (VARTM) was simulated. A computational Fluid Dynamics (CFD) analysis was performed in ANSYS® FLUENT using a volume of fluid (VOF) method and Darcy's law. The process was simulated for fiber volumetric fraction (xf) contents of 5%, 10%, 15% and 25%. Results showed that for percentages of reinforcement content higher than 25%, air trapping and incomplete filling of the mold occur. Simulated filling times were in acceptable agreement with the values obtained experimentally.

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来源期刊

International Journal of Modern Manufacturing Technologies Engineering-Industrial and Manufacturing Engineering

CiteScore

0.70

自引率

0.00%

发文量

期刊介绍： The main topics of the journal are: Micro & Nano Technologies; Rapid Prototyping Technologies; High Speed Manufacturing Processes; Ecological Technologies in Machine Manufacturing; Manufacturing and Automation; Flexible Manufacturing; New Manufacturing Processes; Design, Control and Exploitation; Assembly and Disassembly; Cold Forming Technologies; Optimization of Experimental Research and Manufacturing Processes; Maintenance, Reliability, Life Cycle Time and Cost; CAD/CAM/CAE/CAX Integrated Systems; Composite Materials Technologies; Non-conventional Technologies; Concurrent Engineering; Virtual Manufacturing; Innovation, Creativity and Industrial Development.