玻璃纤维乙烯基酯树脂复合材料的热响应预报方法

复合材料科学与工程 ›› 2019, Vol. 0 ›› Issue (11): 24-29.

玻璃纤维乙烯基酯树脂复合材料的热响应预报方法

冯振宇^1,2, 王纳斯丹^1,2, 樊茂华^1,2, 范保鑫^1,2

1.民航航空器适航审定技术重点实验室,天津 300300;
2.中国民航大学适航学院,天津 300300

收稿日期:2019-03-20 出版日期:2019-11-28 发布日期:2019-11-28
作者简介:冯振宇(1966-),男,博士,教授,主要从事飞行器结构力学及强度方面的研究,mhfzy@163.com。
基金资助:
中央高校基本科研业务费(3122017089)

FORECASTING METHOD OF THERMAL RESPONSE FOR GLASS FIBER VINYL ESTER RESIN COMPOSITE MATERIAL

FENG Zhen-yu^1,2, WANG Na-si-dan^1,2, FAN Mao-hua^1,2, FAN Bao-xin^1,2

1.Key Laboratory of Civil Aircraft Airworthiness Technology, CAAC, Tianjin 300300, China;
2.College of Airworthiness, Civil Aviation University of China, Tianjin 300300, China

Received:2019-03-20 Online:2019-11-28 Published:2019-11-28

摘要/Abstract

摘要： 为研究玻璃纤维/乙烯基酯树脂复合材料在火灾环境下的热响应,考虑其热解过程,建立了热响应方程组,利用有限差分法计算分析单侧热流作用下的材料内部温度-时间历程与碳化过程。研究结果表明:建立的非线性热响应方程组可有效预测玻璃纤维/乙烯基酯树脂复合材料的温度-时间历程,与实验值吻合较好;随着加热时间增加,材料完全碳化,温度趋于稳定,材料温度-深度分布由非线性转变为线性;随着深度增加,玻璃纤维/乙烯基酯树脂复合材料达到热解所需的时间更长,碳化过程变慢;热解反应区中不同深度位置的材料剩余质量分数在同一温度下不同,位置越深剩余质量分数越小,碳化程度越高。

关键词: 玻璃纤维/乙烯基酯树脂, 热响应, 碳化, 热分解

Abstract: In order to study the thermal response of glass fiber vinyl ester resin composites in fire, considering the pyrolysis process in fire, the thermal response equations were established, and a finite difference method was used to calculate and analyze the material′s internal time-dependent temperature progressions and carbonization subjected to one-sided heat flux. The theoretical results from the established nonlinear thermal response equations were validated against experimental data and a good agreement is observed. As the heating time increases, the material is completely carbonized, the temperature changes tend to be stable, and the distribution of material temperature with depth position changes from nonlinear to linear. With the increase of the depth, the time for the glass fiber vinyl ester resin composites reaching the pyrolysis temperature increased and the carbonization process slowed down. The residual mass fraction of materials at different depth in the pyrolysis reaction zone is slightly different at the same temperature, the residual mass fraction decreased and the degree of carbonization increased as the depth of the position rose.

Key words: glass fiber vinyl ester resin composites, thermal response, carbonization, thermal decomposition

中图分类号:

TB332

冯振宇, 王纳斯丹, 樊茂华, 范保鑫. 玻璃纤维乙烯基酯树脂复合材料的热响应预报方法[J]. 复合材料科学与工程, 2019, 0(11): 24-29.

FENG Zhen-yu, WANG Na-si-dan, FAN Mao-hua, FAN Bao-xin. FORECASTING METHOD OF THERMAL RESPONSE FOR GLASS FIBER VINYL ESTER RESIN COMPOSITE MATERIAL[J]. Composites Science and Engineering, 2019, 0(11): 24-29.

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