当加热高于正常工作温度时，纤维-树脂复合材料在热解过程中膨胀

Computational and Experimental Methods in Multiphase and Complex Flow X Pub Date : 2019-07-23 DOI:10.2495/MPF190171

B. Houchens, Sarah N. Scott, Victor E. Brunini, E. Jones, M. Montoya, Wendy Flores-Brito, K. Hoffmeister

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引用次数: 0

摘要

实验发现，当加热温度高于设计工作温度时，多层纤维树脂复合材料会发生明显的软化和膨胀。这种膨胀预计会进一步加速热解，释放挥发性成分，如果暴露在火花、火焰或足够高的温度下，这些挥发性成分会在含氧环境中点燃。本文研究了树脂注入碳纤维的膨胀行为。对碳纤维样品进行了初步的实验和模拟，并对样品的顶部进行了辐射加热，底部进行了保温。模拟考虑耦合热流和多孔介质流。

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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SWELLING DURING PYROLYSIS OF FIBRERESIN COMPOSITES WHEN HEATED ABOVE NORMAL OPERATING TEMPERATURES

It is experimentally observed that multilayer fibre–resin composites can soften and swell significantly when heated above their designed operating temperatures. This swelling is expected to further accelerate the pyrolysis, releasing volatile components which can ignite in an oxygenated environment if exposed to a spark, flame or sufficiently elevated temperature. Here the intumescent behaviour of resin-infused carbon-fibre is investigated. Preliminary experiments and simulations are compared for a carbon-fibre sample radiatively heated on the top side and insulated on the bottom. Simulations consider coupled thermal and porous media flow.

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Computational and Experimental Methods in Multiphase and Complex Flow X

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