Monitoring Crack Propagation in Skin-Stringer Elements Using Carbon Nanotube Doped Adhesive Films: Influence of Defects and Manufacturing Process

Fernandez Sanchez-Romate, Xoan Xose and Moriche, Rocío and Renato Pozo, Ängel and Jiménez-Suárez, Alberto and Sánchez, María and Güemes Gordo, Jesús Alfredo and Ureña, Alejandro (2020). Monitoring Crack Propagation in Skin-Stringer Elements Using Carbon Nanotube Doped Adhesive Films: Influence of Defects and Manufacturing Process. "Composites Science And Technology", v. 193 ; pp. 108147-1081456. ISSN 0266-3538. https://doi.org/10.1016/j.compscitech.2020.108147.

Description

Title: Monitoring Crack Propagation in Skin-Stringer Elements Using Carbon Nanotube Doped Adhesive Films: Influence of Defects and Manufacturing Process
Author/s:
  • Fernandez Sanchez-Romate, Xoan Xose
  • Moriche, Rocío
  • Renato Pozo, Ängel
  • Jiménez-Suárez, Alberto
  • Sánchez, María
  • Güemes Gordo, Jesús Alfredo
  • Ureña, Alejandro
Item Type: Article
Título de Revista/Publicación: Composites Science And Technology
Date: March 2020
ISSN: 0266-3538
Volume: 193
Subjects:
Freetext Keywords: Adhesive joints; Carbon nanotubes; Smart materials; Defects; Non-destructive testing
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Materiales y Producción Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Standard Mode-I and skin-stringer sub-elements were manufactured using novel adhesive films reinforced with carbon nanotubes. Peeling tests were conducted to analyse the different crack propagation mechanisms. In this context, the influence of manufacturing methods and artificial defects is deeply explored. It was observed that the electrical resistance increased with crack length due to a breakage of electrical pathways, depending on manufacturing and induced defects. Co-bonded specimens showed a more stable behaviour due to a better interface between the adhesive and substrate than joints manufactured by secondary bonding. Moreover, by analysing the influence of artificial defects, it was observed that larger discontinuities induced more unstable electromechanical behaviours as there is a more prevalent breakage of electrical pathways. In this regard, samples with Teflon inserts showed sharper increases of electrical resistance than those previously treated with a liquid agent simulating a kissing bond. Therefore, the proposed technique shows a high potential and applicability for Structural Health Monitoring (SHM) of integrated composite structures.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2016-78825-C2-1-RUnspecifiedSilvia González Prolongo y Alejandro UreñaFabricación aditiva de resinas termoestables nanorreforzadas. Aplicación como materiales multifuncionales
Madrid Regional GovernmentS2018/NMT-4411ADITIMATUnspecifiedAdditive manufacturing: from Material to Application

More information

Item ID: 62741
DC Identifier: https://oa.upm.es/62741/
OAI Identifier: oai:oa.upm.es:62741
DOI: 10.1016/j.compscitech.2020.108147
Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0266353820302487?via%3Dihub
Deposited by: Memoria Investigacion
Deposited on: 19 Jan 2022 12:00
Last Modified: 19 Jan 2022 12:00
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