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Investigation of electro-mechanical behavior of carbon nanotube yarns during tensile loading.

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Title: Investigation of electro-mechanical behavior of carbon nanotube yarns during tensile loading.
Authors: Abu Obaid, A.1 a.abuobaid@gmail.com, Heider, D.1,2, Jr.Gillespie, J.W.1,3,4
Source: Carbon. Nov2015, Vol. 93, p731-741. 11p.
Subjects: Carbon nanotubes, Tensile strength, Chemical detectors, Axial loads, Mechanical behavior of materials, Electric properties of materials, Cyclic loads
Abstract: Carbon nanotube (CNT) yarns were evaluated for sensor applications by measuring electrical properties during uniaxial tension loading. Mechanical properties (tenacity and failure strain) and electrical properties (resistivity and gauge factor) were investigated and statistical distributions for these properties were obtained. Cyclic loading test results showed that permanent strain after unloading exists and that the resistance at zero load increases linearly with permanent strain. Furthermore, the relative resistance change during loading was found to be linear with strain. Although mechanical properties of CNT yarns exhibited a significant statistical variation, the resistance was found to have much less statistical variation making them good candidates as sensors for structural health monitoring in composites. [ABSTRACT FROM AUTHOR]
Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 108787506
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  Data: <searchLink fieldCode="DE" term="%22Carbon+nanotubes%22">Carbon nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+detectors%22">Chemical detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Axial+loads%22">Axial loads</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+properties+of+materials%22">Electric properties of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclic+loads%22">Cyclic loads</searchLink>
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  Data: Carbon nanotube (CNT) yarns were evaluated for sensor applications by measuring electrical properties during uniaxial tension loading. Mechanical properties (tenacity and failure strain) and electrical properties (resistivity and gauge factor) were investigated and statistical distributions for these properties were obtained. Cyclic loading test results showed that permanent strain after unloading exists and that the resistance at zero load increases linearly with permanent strain. Furthermore, the relative resistance change during loading was found to be linear with strain. Although mechanical properties of CNT yarns exhibited a significant statistical variation, the resistance was found to have much less statistical variation making them good candidates as sensors for structural health monitoring in composites. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.carbon.2015.05.091
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      – Code: eng
        Text: English
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        PageCount: 11
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        Type: general
      – SubjectFull: Tensile strength
        Type: general
      – SubjectFull: Chemical detectors
        Type: general
      – SubjectFull: Axial loads
        Type: general
      – SubjectFull: Mechanical behavior of materials
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      – SubjectFull: Electric properties of materials
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      – SubjectFull: Cyclic loads
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              Text: Nov2015
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