Online structural health monitoring of polymer composite structure using gold nanoparticles (AuNPs)

  • Sarmad Aslam Faculty of Engineering and Technology, Bahauddin Zakariya University College of Textile Engineering, Bahauddin Zakariya University, Multan, Pakistan
  • Abdul waqar Rajput Faculty of Engineering and Technology, Bahauddin Zakariya University College of Textile Engineering, Bahauddin Zakariya University, Multan, Pakistan
  • Amir Abbas Faculty of Engineering and Technology, BZU College of Textile Engineering, Bahauddin Zakariya University, Multan, Pakistan
  • Anwar ul Aleem Faculty of Engineering and Technology, Bahauddin Zakariya University College of Textile Engineering, Bahauddin Zakariya University, Multan, Pakistan
  • Saad Aslam Faculty of Engineering and Technology, Bahauddin Zakariya University College of Textile Engineering, Bahauddin Zakariya University, Multan, Pakistan

Abstract

A mechanism for online structural health monitoring of composite structure was established by developing highly sensitive strain gauges based on colloidal Gold Nano Particles (AuNPs). They were synthesized using well known Turkevich-Frens method followed by phase transfer in chloroform using surfactant Cetyltrimethylammonium bromide (CTAB). Flexible Strain gauges / smart sensors were formed by mixing colloidal AuNPs-chloroform solution in polystyrene (PS) – chloroform solution and depositing their thick paste on hand-made flexible thermoplastic polyurethane (TPU) film. These sensors were used as strain gauges on composite substrates for tensile testing. The developed AuNP based strain gauges were found to have 10 times higher sensitivity than normal metal foil strain gauges.

Published
Apr 1, 2024
How to Cite
ASLAM, Sarmad et al. Online structural health monitoring of polymer composite structure using gold nanoparticles (AuNPs). Mehran University Research Journal of Engineering and Technology, [S.l.], v. 43, n. 2, p. 157-161, apr. 2024. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/3085>. Date accessed: 18 july 2024. doi: http://dx.doi.org/10.22581/muet1982.3085.
Section
Articles
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License