Detection of ageing effects in protective structures using THz technologies

Sebastian Engelbrecht; Théo Jean; Andreas Klavzar; Jean-Francois Legendre; Stefan Sommer; Bernd M. Fischer

doi:10.1117/12.2509968

1 March 2019 Detection of ageing effects in protective structures using THz technologies

Sebastian Engelbrecht, Théo Jean, Andreas Klavzar, Jean-Francois Legendre, Stefan Sommer, Bernd M. Fischer

Proceedings Volume 10917, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII; 1091711 (2019) https://doi.org/10.1117/12.2509968
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

In this work the potential of THz technology to detect ageing effects in modern armor system is studied. First experiments have been done in pure polymers, a key component in modern armor devices. Artificial ageing in thermooxidative environment has been applied to Polyamide 6 and Polyethylene and their THz response has been recorded. It was found that the THz refractive index indeed undergoes significant changes after the thermal treatment. The direction of the changes and the mechanisms causing these changes are highly dependent on the investigated polymer. Afterwards experiments on more representative devices, made from hard aramid, were conducted. An artificial ageing following the NATO standard STANAG 4370 has been applied. The THz refractive index undergoes significant changes, showing the high potential THz technology has to offer in this novel field of application.

Conference Presentation

Citation Download Citation

Sebastian Engelbrecht, Théo Jean, Andreas Klavzar, Jean-Francois Legendre, Stefan Sommer, and Bernd M. Fischer "Detection of ageing effects in protective structures using THz technologies", Proc. SPIE 10917, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII, 1091711 (1 March 2019); https://doi.org/10.1117/12.2509968

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

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