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用替代电导性含料增强的砂的电机行为

Niki Trochoutsou¹, Danny Smyl², Giacomo Torelli¹

¹Department of Civil and Structural Engineering, The University of Sheffield, Sheffield, UK.

Materials and structures

|March 10, 2025

概括

回收碳纤维为智能水泥砂提供了可持续和经济高效的解决方案,增强了结构健康监测,而不会牺牲性能. 在0.25%体积度下最佳使用. 增强曲强度和自我感知能力.

科学领域:

材料科学材料科学材料科学
土木工程土木工程是指土木工程.
纳米技术纳米技术

背景情况:

导电性内含物使结构材料的自我传感能够用于健康监测.
可持续的替代品和对智能复合材料的标准化测试尚未得到充分探索.
多种测试协议质疑现有的智能复合材料表征的可靠性.

研究的目的:

研究再生碳纤维和石墨粉对水泥砂的影响.
评估机械,电气,运输和压电阻的性能.
将回收纤维与原始纤维进行比较,并评估测试协议的影响.

主要方法:

用再循环碳纤维 (0.05-1%体积) 修改了水泥砂. 和石墨粉 (0.3-3%的体积) 沙子的替代). 沙子的替代.
处女碳纤维被用作一个基准.
系统地评估了机械,电气,运输和压电阻特性.
分析了测试协议和电极配置对压电阻的影响.

主要成果:

回收碳纤维显示出作为一个具有成本效益的替代品的潜力,保持电气和压电阻性能.
0.25% 的体积. 的回收或原始碳纤维提高了50-60%的屈曲强度,并提供了良好的压力阻抗性 (尺度系数90-110).
石墨粉导致自我感应能力较差,压力强度降低高达33%.

结论:

回收碳纤维是智能水泥应用的可行可持续选择.
特定剂量的回收或原始碳纤维优化了结构和自传感性质.
石墨粉不适合增强这些迫击炮的自我传感能力.

关键词:

碳纤维是一种碳纤维.复合材料复合材料是一种复合材料.石墨粉末是一种石墨粉末.回收碳纤维的回收利用自我感知是一种自我感知.聪明的聪明的聪明的聪明的

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