Electrical and Mechanical Characterization of Hybrid CFRP Sheets
Electrical and Mechanical Characterization of Hybrid CFRP Sheets
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DOI：
10.1177/0021998305053452
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发表时间：
2006-02
影响因子：
2.9
通讯作者：
Zhishen Wu;C. Yang;Y. Tobe;L. Ye;T. Harada
中科院分区：
文献类型：
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作者：
Zhishen Wu;C. Yang;Y. Tobe;L. Ye;T. Harada
本文提出了一种新型混杂碳纤维增强聚合物（HCFRP）复合材料的电学和力学模型，该复合材料由几种不同强度和杨氏模量的碳纤维组成。在此基础上，进行了碳纤维种类及其体积分数等主要变量的实验研究。制备了6种不同碳纤维种类和体积分数的HCFRP板试件，研究了其力学性能和自健康监测功能。实验结果表明，多种碳纤维的混杂是提高HCFRP片材力学性能的有效方法。由于不同类型的碳纤维的宏观断裂是渐进的，HCFRP片材的电阻随应变呈阶梯状变化。步骤的数量与碳纤维类型的数量有关。还已经表明，断裂的碳纤维仍然可以通过横向导电来促进电流传导。力学行为与电学行为之间的良好相关性揭示了HCFRP片材的自健康监测功能。
This study brings forth the electrical and mechanical models of a new kind of hybrid carbon fiber-reinforced polymer (HCFRP) composites consisting of several types of carbon fibers with different strengths and Young’s moduli. Then, an experimental program with some main variables including the carbon fiber types and their volume fractions has been carried out. Six types of specimens have been fabricated to investigate the mechanical properties and self-health monitoring function of the HCFRP sheets with different types of carbon fiber and volume fractions. The experimental results indicate that the hybridization of several types of carbon fibers is an effective method for upgrading the mechanical properties of the HCFRP sheets. The electrical resistance of the HCFRP sheets changes with the strain in a stepwise manner due to the gradual macro-fracture of different types of carbon fibers. The number of steps is related to the number of carbon fiber types. It has also been shown that the ruptured carbon fibers can still contribute to the current conduction through transverse electrical conduction. The good correlations between the mechanical and electrical behaviors reveal the self-health monitoring function of the HCFRP sheets.