Impact analysis of fiber-reinforced composites by means of carbon nanotubes

Claudio Sbaruffatti; Pedro Simón; Simone Cinquemani; Diego Scaccabarozzi

doi:10.1117/12.2292641

Translator Disclaimer

Abstract

Carbon nanotubes (CNT) can be profitably embedded into the matrix of composite structure to obtain a distributed sensor able to estimate deformations due to vibrations, impacts or high load applied. In this paper electrical measurements of carbon nanotube multiscale GFRPs have been carried out to monitor low velocity impacts and to estimate the severity of corresponding damages. The work has been developed experimentally, by monitoring the variation of the structure electrical impedance as a consequence of impacts. Electrical measurements show that there is an initial decrease of electrical resistance due to plate compression, followed by an increase due to tunneling effect of carbon nanotubes. Criteria based on the dynamic variation of electrical impedance were proposed and their correlation with the impact energy was studied. Severity of damages has been estimated with different approaches, by measuring the damage extends through the microscope. The analysis shows that CNT can properly describe the dynamics of impact. Synthetic indexes proposed in this work to estimate the severity of damages from CNTs electrical measurements have some limitations and, at now, only partially fit with experimental data.

Citation Download Citation

Claudio Sbaruffatti, Pedro Simón, Simone Cinquemani, and Diego Scaccabarozzi "Impact analysis of fiber-reinforced composites by means of carbon nanotubes", Proc. SPIE 10595, Active and Passive Smart Structures and Integrated Systems XII, 1059538 (15 March 2018); doi: 10.1117/12.2292641; https://doi.org/10.1117/12.2292641

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Keywords/Phrases

Search In:

Publication Years