Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites

Yaǧmur Ateşcan; Hülya Cebeci

Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites

Yaǧmur Ateşcan, Hülya Cebeci

Department of Aeronautical Engineering

Istanbul Technical University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The increased use of composites for load-carrying structures, bring out the critical problem that strain and damage sensing to maintain reliable structures. In this study, carbon nanotube (CNTs) polymer nanocomposites (CNT-PNCs) as a smart paint were used as a strain sensor to follow the mechanical deformations of the structures. First, CNT polymer nanocomposites (CNT-PNCs), with three different CNT weight fractions (0.1, 0.25 and 0.5), were prepared by adding CNTs into the epoxy by shear mixing. Effect of CNT weight fraction on electrical conductivity of CNT-PNCs were investigated by 2-probe electrical conductivity measurement. The results show that even at low concentrations of CNT the electrical conductivity is beyond the percolation threshold. Within these results CNT-PNCs were applied on to the surface of composite structures as a smart paint for in-situ Structural Health Monitoring (SHM). Cyclic loading were applied onto the specimens at a constant voltage of 10 V and the stress and resistivity change data were obtained simultaneously. The test results showed a proper compliance with a damage of the composite structure.

Original language	English
Title of host publication	ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
Publisher	European Conference on Composite Materials, ECCM
ISBN (Electronic)	9783000533877
Publication status	Published - 2016
Event	17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany Duration: 26 Jun 2016 → 30 Jun 2016

Publication series

Name	ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

Conference

Conference	17th European Conference on Composite Materials, ECCM 2016
Country/Territory	Germany
City	Munich
Period	26/06/16 → 30/06/16

Bibliographical note

Publisher Copyright:
© 2016, European Conference on Composite Materials, ECCM. All rights reserved.

Keywords

Carbon nanotube
Damage sensing
Smart paint
Strain sensor
Structural health monitoring

Cite this

Ateşcan, Y., & Cebeci, H. (2016). Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites. In ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials (ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials). European Conference on Composite Materials, ECCM.

Ateşcan, Yaǧmur ; Cebeci, Hülya. / Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites. ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM, 2016. (ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials).

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title = "Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites",

abstract = "The increased use of composites for load-carrying structures, bring out the critical problem that strain and damage sensing to maintain reliable structures. In this study, carbon nanotube (CNTs) polymer nanocomposites (CNT-PNCs) as a smart paint were used as a strain sensor to follow the mechanical deformations of the structures. First, CNT polymer nanocomposites (CNT-PNCs), with three different CNT weight fractions (0.1, 0.25 and 0.5), were prepared by adding CNTs into the epoxy by shear mixing. Effect of CNT weight fraction on electrical conductivity of CNT-PNCs were investigated by 2-probe electrical conductivity measurement. The results show that even at low concentrations of CNT the electrical conductivity is beyond the percolation threshold. Within these results CNT-PNCs were applied on to the surface of composite structures as a smart paint for in-situ Structural Health Monitoring (SHM). Cyclic loading were applied onto the specimens at a constant voltage of 10 V and the stress and resistivity change data were obtained simultaneously. The test results showed a proper compliance with a damage of the composite structure.",

keywords = "Carbon nanotube, Damage sensing, Smart paint, Strain sensor, Structural health monitoring",

author = "Yaǧmur Ate{\c s}can and H{\"u}lya Cebeci",

note = "Publisher Copyright: {\textcopyright} 2016, European Conference on Composite Materials, ECCM. All rights reserved.; 17th European Conference on Composite Materials, ECCM 2016 ; Conference date: 26-06-2016 Through 30-06-2016",

year = "2016",

language = "English",

series = "ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials",

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Ateşcan, Y & Cebeci, H 2016, Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites. in ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials, European Conference on Composite Materials, ECCM, 17th European Conference on Composite Materials, ECCM 2016, Munich, Germany, 26/06/16.

Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites. / Ateşcan, Yaǧmur; Cebeci, Hülya.
ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM, 2016. (ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites

AU - Ateşcan, Yaǧmur

AU - Cebeci, Hülya

PY - 2016

Y1 - 2016

N2 - The increased use of composites for load-carrying structures, bring out the critical problem that strain and damage sensing to maintain reliable structures. In this study, carbon nanotube (CNTs) polymer nanocomposites (CNT-PNCs) as a smart paint were used as a strain sensor to follow the mechanical deformations of the structures. First, CNT polymer nanocomposites (CNT-PNCs), with three different CNT weight fractions (0.1, 0.25 and 0.5), were prepared by adding CNTs into the epoxy by shear mixing. Effect of CNT weight fraction on electrical conductivity of CNT-PNCs were investigated by 2-probe electrical conductivity measurement. The results show that even at low concentrations of CNT the electrical conductivity is beyond the percolation threshold. Within these results CNT-PNCs were applied on to the surface of composite structures as a smart paint for in-situ Structural Health Monitoring (SHM). Cyclic loading were applied onto the specimens at a constant voltage of 10 V and the stress and resistivity change data were obtained simultaneously. The test results showed a proper compliance with a damage of the composite structure.

AB - The increased use of composites for load-carrying structures, bring out the critical problem that strain and damage sensing to maintain reliable structures. In this study, carbon nanotube (CNTs) polymer nanocomposites (CNT-PNCs) as a smart paint were used as a strain sensor to follow the mechanical deformations of the structures. First, CNT polymer nanocomposites (CNT-PNCs), with three different CNT weight fractions (0.1, 0.25 and 0.5), were prepared by adding CNTs into the epoxy by shear mixing. Effect of CNT weight fraction on electrical conductivity of CNT-PNCs were investigated by 2-probe electrical conductivity measurement. The results show that even at low concentrations of CNT the electrical conductivity is beyond the percolation threshold. Within these results CNT-PNCs were applied on to the surface of composite structures as a smart paint for in-situ Structural Health Monitoring (SHM). Cyclic loading were applied onto the specimens at a constant voltage of 10 V and the stress and resistivity change data were obtained simultaneously. The test results showed a proper compliance with a damage of the composite structure.

KW - Carbon nanotube

KW - Damage sensing

KW - Smart paint

KW - Strain sensor

KW - Structural health monitoring

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M3 - Conference contribution

AN - SCOPUS:85018552338

T3 - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

BT - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

PB - European Conference on Composite Materials, ECCM

T2 - 17th European Conference on Composite Materials, ECCM 2016

Y2 - 26 June 2016 through 30 June 2016

ER -

Ateşcan Y, Cebeci H. Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites. In ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials. European Conference on Composite Materials, ECCM. 2016. (ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials).

Investigation of effect of CNT weight fraction on smart paint for structural health monitoring of carbon fiber reinforced composites

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