基于CNT的二维编织多尺度纤维增强复合材料系统的粘弹性建模和分析
Ashirbad Swain1, Vignesh Palani2, Sigil Francis2
1School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India. ashirbad.swain@vit.ac.in.
Discover nano
|April 30, 2024
概括
本研究提出了一种微机械框架,用于分析碳纳米管 (CNT) 增强复合材料的粘弹性特性. 开发的模型准确地预测了复合材料的行为,显示了对振动阻尼应用的潜力.
科学领域:
- 材料科学与工程 材料科学与工程
- 纳米技术纳米技术
- 复合材料 复合材料 复合材料
背景情况:
- 碳纳米管 (CNTs) 提供了特殊的特性,推动了对先进材料应用的研究.
- 了解CNT增强复合材料的粘弹性行为对于其有效利用至关重要.
研究的目的:
- 开发一个全面的微机械框架来评估多尺度CNT增强的2D编织混合复合材料的粘弹性特性.
- 为了证明这个框架在外结构的动态分析中的应用.
主要方法:
- 使用莫里-塔纳卡 (MT) 微力学和弱粘弹性介相 (WI) 理论为矩阵构成相的数学建模.
- 线粘弹性的材料强度 (SOM) 方法和代表单位细胞 (RUC) 的单元细胞方法 (UCM).
- 数字模拟改变了CNT的组成,接口条件,温度,频率和几何参数.
主要成果:
- 该框架成功地评估了同质化的粘弹性特性,考虑到随机的CNT方向和相间效应.
- 分析显示,CNT含量,接口质量和几何因素对复合材料粘性弹性的显著影响.
- 由于线厚度的变化,已证明具有异型粘弹性质的潜力.
结论:
- 拟议的微机械框架为CNT增强复合材料的粘弹性行为提供了宝贵的见解.
- 该研究强调了该材料在减振应用中的潜力,其证据是外板中的振动幅度降低.
- 结果可以指导未来的研究和开发,用于动态应用的先进复合材料.
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