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碳纳米管增强元纳米复合结构对静态性能的孔隙效应

Farzad Ebrahimi¹, Ali Dabbagh¹

¹Department of Mechanical Engineering, Faculty of Engineering, Imam Khomeini International University, Qazvin P.O. Box 3414896818, Iran.

|July 29, 2023

概括

这项研究调查了孔隙和波形碳纳米管 (CNTs) 如何影响辅助性聚合物纳米复合材料 (PNC) 束的曲. 忽视CNT波动性显著增加了光束偏移,突出显示了微结构细节在元纳米材料设计中的重要性.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
纳米技术纳米技术

背景情况:

聚合物纳米复合材料 (PNC) 和元材料为可穿戴式应变传感器等应用提供了独特的特性.
了解由这些先进材料制成的结构元件的机械行为对于设计实施至关重要.
辅助性材料具有负波桑比率,具有独特的变形特性.

研究的目的:

为了研究厚厚的辅性碳纳米管增强 (CNTR) 聚合物束的非线性曲行为.
分析碳纳米管 (CNTs) 的孔隙性和波形配置对光束性能的不利影响.
为在传感器中潜在使用的超轻元纳米材料的设计提供可靠的数据.

主要方法:

利用计算高效的同质化技术来计算CNT波动.
采用了高阶剪切变形理论 (HSDT) 与·卡尔曼的非线性应变定义相结合.
用简单的支来解决厚梁的控制方程,使用Navier的确切解决方案.

主要成果:

增加的多孔性显著增强了辅助性PNC梁的曲变形.
在重新进入的格子结构中的厚壁细胞可以有效地管理整体偏移.
忽视CNT的非理想 (波状) 形状会导致与现实相比大幅低估光束偏移.

结论:

微观结构特征,如多孔性和CNT波动性,对辅助性元纳米材料的非线性曲具有重要影响.
准确的建模,包括非理想的纳米填充剂形状,对于预测这些先进材料的性能至关重要.
这些发现为在结构部件和传感器中开发和应用轻质,高灵敏度的元纳米材料提供了宝贵的见解.

关键词:

用CNT增强的纳米复合材料.辅助性元材料辅助性元材料非线性曲是一种非线性曲.波浪的现象波浪的现象

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