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首页> 外文会议>Fracture and strength of solids VII >Cyclic Behavior of Electrical Resistance Type Low Stiffness, Large Strain Sensor by Using Carbon Nanofiber/Flexible Epoxy Composite
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Cyclic Behavior of Electrical Resistance Type Low Stiffness, Large Strain Sensor by Using Carbon Nanofiber/Flexible Epoxy Composite

机译：碳纳米纤维/柔性环氧复合材料的电阻型低刚度大应变传感器的循环特性

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摘要

Carbon nanofiber (CNF) has good electrical conductivity. Addition of a few percentages of carbon nanofiber to polymer yields electrical conductivity but hardly affects the mechanical properties of polymer. This conductive polymer may be useful for sensing applications such as strain sensors and chem-resist sensors. Many researchers have reported on the electrical conductivity, but the electrical resistance change under strain of the carbon nanofiller composites is not fully investigated. In this study, the electrical resistance change under strain of CNF/flexible-epoxy composites was investigated experimentally. More than 100% of quasi-static strain can be measured by using CNF/flexible-epoxy composite with Young's modulus of less than IMPa. Cyclic and unloading behaviors were also measured and discussed. It was found that the cyclic behavior was strongly affected by viscoelasticity and damage.
机译：碳纳米纤维（CNF）具有良好的导电性。向聚合物中添加百分之几的碳纳米纤维可产生电导率，但几乎不会影响聚合物的机械性能。该导电聚合物可用于传感应用，例如应变传感器和耐化学腐蚀传感器。许多研究人员已经报道了电导率，但是碳纳米填料复合材料在应变作用下的电阻变化尚未得到充分研究。在这项研究中，实验研究了CNF /柔性环氧树脂复合材料在应变作用下的电阻变化。通过使用杨氏模量小于1MPa的CNF /柔性环氧树脂复合材料，可以测量100％以上的准静态应变。还测量和讨论了循环和卸载行为。发现循环行为受到粘弹性和破坏的强烈影响。

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