基于宏细观模型的黏弹性复合材料层合板阻尼预测

doi:10.19936/j.cnki.2096-8000.20250528.010

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (5): 73-80.DOI: 10.19936/j.cnki.2096-8000.20250528.010

基于宏细观模型的黏弹性复合材料层合板阻尼预测

朱遂安¹, 张鸿¹, 李湘萍¹, 刘兵飞^2*

1.中国民航大学中欧航空工程师学院, 天津 300300;
2.中国民航大学航空工程学院, 天津 300300

收稿日期:2024-02-07 出版日期:2025-05-28 发布日期:2025-07-11
通讯作者: 刘兵飞(1985—),男,博士,教授,主要从事复合材料动力学等方面的研究,bfliu@cauc.edu.cn。
作者简介:朱遂安(1999—),男,硕士研究生,主要从事树脂基纤维增强复合材料的阻尼特性方面的研究。
基金资助:
中央高校基本科研业务费专项资金(3122019180)

Damping prediction of viscoelastic composite laminates based on macro and micro models

ZHU Suian¹, ZHANG Hong¹, LI Xiangping¹, LIU Bingfei^2*

1. Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China;
2. Aviation Engineering Institute, Civil Aviation University of China, Tianjin 300300, China

Received:2024-02-07 Online:2025-05-28 Published:2025-07-11

摘要/Abstract

摘要： 提出了一种基于宏细观模型求解复合材料层合板模态阻尼的有限元方法。该方法以层合板的模态分析结果作为边界条件输入基体为黏弹性的单向纤维RVE模型,计算了具有频率依赖性与应变依赖性的各向损耗因子,并结合应变能法在宏观模型中引入符合实际分布的阻尼,借助有限元软件中复频率分析步求解层合板的模态阻尼。与已有的阻尼预测方法相比,本方法的计算结果变化趋势更接近实验数据,且只需定义细观组分的材料属性即可实现任意体积分数、任意铺层的复合材料阻尼预测,具有更加广泛的适用性,为利用通用有限元软件分析各类复合材料提供了参考。

关键词: 宏细观模型, 模态阻尼, 有限元分析, 应变能法, 复合材料

Abstract: A finite element method based on macro and micro models was proposed to solve the modal damping of composite laminates. This method takes the modal analysis results of laminated plates as the boundary condition input for a unidirectional fiber RVE model with a viscoelastic matrix. The anisotropic loss factor with frequency and strain dependence is calculated, and the strain energy method is combined to introduce damping that conforms to the actual distribution in the macroscopic model. The modal damping of laminated plates is solved using complex frequency analysis steps in finite element software. Compared with existing damping prediction methods, the calculation results of this method have a trend closer to experimental data, and only the material properties of the microscopic components need to be defined to achieve damping prediction of composite materials with any volume fraction and any layer. It has a wider applicability and provides a reference for using general finite element software to analyze various types of composite.

Key words: macro and micro models, modal damping, FEM, strain energy method, composites

中图分类号:

TB332

朱遂安, 张鸿, 李湘萍, 刘兵飞. 基于宏细观模型的黏弹性复合材料层合板阻尼预测[J]. 复合材料科学与工程, 2025, 0(5): 73-80.

ZHU Suian, ZHANG Hong, LI Xiangping, LIU Bingfei. Damping prediction of viscoelastic composite laminates based on macro and micro models[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(5): 73-80.

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基于宏细观模型的黏弹性复合材料层合板阻尼预测

Damping prediction of viscoelastic composite laminates based on macro and micro models

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