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Sandwich diffusion model for moisture absorption of flax/glass fiber reinforced hybrid composite

机译：夹杂物扩散模型用于亚麻/玻璃纤维增​​强混杂复合材料的吸湿

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摘要

Flax/glass fiber reinforced hybrid composites take up a high amount of moisture from humid environment due to hydrophilic nature of flax fibers. Some experimental works have been carried out to investigate the diffusion kinetic of these hybrid composites with different stacking sequences. However, few analytical efforts have been made to effectively describe their moisture diffusion behaviors thus far. In this paper, a sandwich diffusion model is established to predict the moisture absorption behavior of flax/glass hybrid composites with different stacking sequences. To deal with interface concentration problem across flax fiber layers and glass fiber layers, the continuous normalized concentration and mass-conserving condition are employed. Both finite element analysis and moisture absorption experiments are performed to validate the proposed model, and the results shows that good agreements are achieved.
机译：由于亚麻纤维的亲水性，亚麻/玻璃纤维增​​强的杂化复合材料会在潮湿的环境中吸收大量水分。已经进行了一些实验工作来研究这些具有不同堆积顺序的杂化复合材料的扩散动力学。但是，到目前为止，很少有分析工作可以有效地描述其水分扩散行为。本文建立了三明治扩散模型，以预测具有不同堆积顺序的亚麻/玻璃杂化复合材料的吸湿性能。为了解决亚麻纤维层和玻璃纤维层之间的界面浓度问题，采用了连续的归一化浓度和质量守恒条件。进行了有限元分析和吸湿实验，以验证所提出的模型，结果表明取得了良好的一致性。

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