Directional response of Randomly dispersed Carbon Nanotubes strain sensors

Guemes Gordo, Jesus Alfredo and Pozo Morales, Angel Renato and Fernandez Lopez, Antonio and Fernandez Sanchez-Romate, Xoan Xose and Sánchez, María and Ureña, Alejandro (2020). Directional response of Randomly dispersed Carbon Nanotubes strain sensors. "Sensors", v. 20 (n. 10); pp. 2980-2894. ISSN 1424-8220. https://doi.org/10.3390/s20102980.

Description

Title: Directional response of Randomly dispersed Carbon Nanotubes strain sensors
Author/s:
  • Guemes Gordo, Jesus Alfredo
  • Pozo Morales, Angel Renato
  • Fernandez Lopez, Antonio
  • Fernandez Sanchez-Romate, Xoan Xose
  • Sánchez, María
  • Ureña, Alejandro
Item Type: Article
Título de Revista/Publicación: Sensors
Date: May 2020
ISSN: 1424-8220
Volume: 20
Subjects:
Freetext Keywords: strain monitoring; bonded joints; multidirectional sensors; doped resins
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Materiales y Producción Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

Tests on a double lap bonded joint, with transverse strips of randomly oriented carbon nanotubes (CNT) sprayed onto an epoxy adhesive film, showed a positive increment in electrical resistance under tensile load, even though the transverse strains were negative. Other experiments included in this work involved placing longitudinal and transversal CNT sensors in a tensile loaded aluminum plate, and, as reported by other authors, the results confirm that the resistance change is not only dependent on the strains oriented with the electrode line, while the other strain components also influence the response. This behavior is quite different to that of conventional strain gages which have a near zero sensitivity to strains not aligned to the sensor direction. The dependence of the electrical response on all the strain components makes it quite difficult, possibly unfeasible, to experimentally determine the individual strain components with this kind of sensors; however, the manufacturing of aligned CNT sensors could deal with this issue.

More information

Item ID: 62742
DC Identifier: http://oa.upm.es/62742/
OAI Identifier: oai:oa.upm.es:62742
DOI: 10.3390/s20102980
Official URL: https://www.mdpi.com/1424-8220/20/10/2980
Deposited by: Memoria Investigacion
Deposited on: 30 Nov 2020 09:55
Last Modified: 30 Nov 2020 09:55
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM