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"有限元法"用于模拟聚合物和FRP的高分子结构和热力学性能

Alexander Korolev¹, Alexander Zadorin¹, Maxim Mishnev¹

¹Department of Building Construction and Structures, South Ural State University, Chelyabinsk 454080, Russia.

|December 17, 2024

概括

本研究开发了一种有限元素 (FE) 方法,用于建模固化热固化聚合物和纤维增强聚合物 (FRP),准确预测不同温度和负载下的机械和热性能.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
机械工程机械工程

背景情况:

耐热聚合物和纤维增强聚合物 (FRP) 是重要的工程材料.
准确预测它们的机械和热性能对于可靠的结构设计至关重要.
现有的建模技术可能无法完全捕捉这些材料在各种条件下的复杂行为.

研究的目的:

开发和验证一种有限元素 (FE) 方法,用于建模固化热固化环氧聚合物和FRP.
以高准确度预测这些材料的机械和热性能.
为了研究温度对材料行为的影响.

主要方法:

结构数学建模和基于计算机的有限元素 (FE) 建模.
基于四面体超分子结构的FE模型的开发,结合FRP的玻璃纤维杆.
使用结构密度作为定义元素大小,配置和粘弹性属性的关键参数.
与拉伸强度和变形的实验数据对FE模型的验证.

主要成果:

成功开发FE模型用于固化环氧聚合物和FRP.
FE模型准确地预测了机械负荷下的短期和长期变形.
这些模型在考虑温度因子时预测性能方面表现出很高的准确性.
粘弹性和长期塑性变形与超分子结构和密度有关.

结论:

开发的FE方法为预测热固聚合物和FRP的行为提供了一个强大的工具.
这种方法可以在各种机械和热条件下准确评估性能.
这项研究强调了超分子结构在确定材料特性和长期行为的重要性.

关键词:

固化聚合物的固化聚合物.纤维增强塑料 (FRP) 的使用有限元素 (FE) 是有限的元素.建模建模模型建模模型弹性模块 (MoE) 是指弹性的模块.超分子结构超分子结构热固化聚合物聚合物的热固化聚合物

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