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Analysis of the interaction of projectiles with ceramic targets by means of flash X-ray cinematography and optical methods

 
: Straßburger, Elmar; Bauer, Steffen

:

Salem, J. ; American Ceramic Society -ACerS-, Westerville/Ohio:
41st International Conference on Advanced Ceramics and Composites 2017. Proceedings : A collection of papers presented at the 41st International Conference on Advanced Ceramics and Composites, January 22-27, 2017, Daytona Beach, Florida
Hoboken/NJ: Wiley, 2018 (Ceramic engineering and science proceedings 38.2017, Nr.2)
ISBN: 978-1-119-47454-8 (Print)
ISBN: 978-1-119-47467-8 (Online)
S.205-219
International Conference on Advanced Ceramics and Composites (ICACC) <41, 2017, Daytona Beach/Fla.>
Englisch
Konferenzbeitrag
Fraunhofer EMI ()
ceramic targets; optical method; X-ray cinematography; fluorescent screen; ceramic fragment; projectile erosion

Abstract
This chapter presents an overview of complementary investigations with optical and X-ray visualization techniques conducted at EMI. Instead of an in-depth analysis of specific materials or material combinations the focus of the paper is on demonstrating the possibilities for analysis given by the different visualization techniques and their combined application. The radiation transmitted through the target is then detected on a fluorescent screen. The position of the target is between the multi-anode tube and the fluorescent screen, relatively close to the fluorescent screen. The dependency of the duration of the dwell phase and projectile erosion on the type of ceramic and backing were determined. A strong influence of the backing type was observed. The higher the strength of the backing, the longer was the duration of the dwell phase. The magnitude of the influence of the backing depended on the type of ceramic. The increase of penetration velocity was due to the strong fragmentation of the ceramic and the lack of a lateral confinement, such that the ceramic fragments could be displaced and the pressure in front of the projectile rapidly decreased. The deformation of the backing plate also enhanced the displacement of ceramic fragments and decrease or pressure.

: http://publica.fraunhofer.de/dokumente/N-487208.html