聚合物复合材料在固化过程中的热物理特性建模

IF 0.5 4区 工程技术 Q4 ENGINEERING, AEROSPACE
O. S. Dmitriev, A. A. Barsukov, D. Ya. Barinov
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引用次数: 0

摘要

建立聚合物复合材料在固化过程中的热物理特性模型是一项非常紧迫的任务,本文对此进行了论证。本文介绍了基于热固性树脂的聚合物复合材料在模具中热固化的数学模型。根据在不同条件下测得的热物理特性的实验温度相关性,得到了纤维、织物和颗粒聚合物复合材料的体积热容和导热系数与固化程度和固化过程中树脂组分的模型相关性,其显著特点是在模型中用固化树脂的特性替代了多孔增强填料的特性。实验和计算结果均已公布。所提出的热物理特性模型提高了工艺建模和最佳温度-时间固化周期计算的准确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling the thermophysical characteristics of polymer composites in the curing process

Constructing models of thermophysical characteristics of polymer composite materials in the curing process is a highly pressing task that is substantiated in this paper. A mathematical model of hot curing of polymer composites based on a thermosetting resin in a mold is presented. Based on experimental temperature dependences of thermophysical characteristics measured under different conditions, modeling dependences of the volume heat capacity and thermal conductivity of fiber, fabric and granular polymer composites on the degree of cure and resin fraction during curing are obtained, with their distinctive feature being the replacement of the properties of a porous reinforcing filler with those of the cured resin in the model. The results of experiments and calculations are presented. The proposed models of thermophysical characteristics increase the accuracy of process modeling and calculation of optimal temperature-time curing cycles.

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来源期刊
Thermophysics and Aeromechanics
Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS
CiteScore
0.90
自引率
40.00%
发文量
29
审稿时长
>12 weeks
期刊介绍: The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.
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