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首页> 外文会议>Japan International SAMPE Symposium >Nondestructive Damage Sensing and Stress Transfer Mechanisms of Carbon Nanotube and Nanofiber/Epoxy Composites Using Electrical Resistance Measurement and Acoustic Emission
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Nondestructive Damage Sensing and Stress Transfer Mechanisms of Carbon Nanotube and Nanofiber/Epoxy Composites Using Electrical Resistance Measurement and Acoustic Emission

机译：使用电阻测量和声学发射的碳纳米管和纳米纤维/环氧复合材料的无损损伤感应和应力传递机制

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摘要

Nondestructive damage sensitivity and the reinforcing effect were studied for carbon nanotube (CNT) and nanofiber (CNF) composites with their various volume fractions using electrical resistance measurement and acoustic emission (AE). Carbon black (CB) was used to compare CNT with CNF comparatively. The sensitivity for fiber damage such as fiber fracture, matrix deformation and fiber tension was highest for CNT composite, and for CB case they were lowest compared with CNT and CNF. For CNT added case mechanical properties and apparent modulus indicating the reinforcing effect were highest. Valuable information on fiber damage and epoxy deformation and the reinforcing effect of carbon nanocomposite could be obtained from electrical resistivity measurement as a new concept of nondestructive evaluation.
机译：使用电阻测量和声发射（AE）对碳纳米管（CNT）和纳米纤维（CNF）复合材料进行了非破坏性损伤敏感性和增强效应。炭黑（CB）用于比较CNF与CNF相对比较。对于CNT复合材料，纤维损伤如纤维损伤的敏感性，如纤维骨折，基质变形和纤维张力最高，并且对于与CNT和CNF相比，它们最低的CB情况。对于CNT增加的案例机械性能和表观模量，表明增强效果最高。有关纤维损伤和环氧变形的有价值的信息和碳纳米复合材料的增强效果可以从电阻率测量获得作为非破坏性评价的新概念。

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