Transverse liquid composite moulding processes for advanced composites material manufacturing

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2022-08-08 DOI:10.1080/14658011.2022.2108983

Jeeeun Lee, M. Duhovic, T. Allen, P. Kelly

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引用次数: 1

Abstract

ABSTRACT The hydrodynamic compaction behaviour in transverse (through-thickness) impregnation variants of Liquid Composite Moulding (LCM) results in a non-homogeneous fibre volume fraction distribution. A fully coupled simulation model of the entire family of transverse resin infusion/compression processes is presented, which simulates the hydrodynamic compaction behaviour and predicts the process time, fluid pressure, effective stress, and fibre volume fraction distribution. The model is applied to the compression of a saturated preform stack, resin injection into a dry preform, and Compression Resin Transfer Moulding. The simulations are verified using analytic solutions and validated against experimental results from the literature. Special forms of the constitutive equations are constructed to lead to a constant diffusion coefficient, and the resulting model is solved semi-analytically. The results are used to verify the full non-linear simulation model. Additionally, it is shown that assumptions of quasi-steady flow and uniform deformation introduce significant errors in processes involving direct piston compaction of the fibre preform.

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用于先进复合材料制造的横向液体复合成型工艺

液体复合模塑(LCM)的横向(通过厚度)浸渍变体的流体动力压实行为导致纤维体积分数分布不均匀。提出了一种全耦合的横向树脂注入/压缩过程模拟模型，该模型模拟了流体动力压实行为，并预测了过程时间、流体压力、有效应力和纤维体积分数分布。该模型应用于饱和预成型堆的压缩、树脂注入干燥预成型和压缩树脂转移成型。利用解析解对模拟结果进行了验证，并与文献中的实验结果进行了验证。构造了特殊形式的本构方程，使扩散系数保持恒定，并对模型进行了半解析求解。结果用于验证全非线性仿真模型。此外，还表明准稳定流动和均匀变形的假设在纤维预制体的直接活塞压实过程中引入了显著的误差。

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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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.