Flash x-ray radiography study of the dynamic fracture of metallic discs at the interface between two colliding detonation wave fronts

Kevin J. P. Reddy; Cornelis Jean Terblanche; Pieter J. Konig

doi:10.1117/12.567051

17 March 2005 Flash x-ray radiography study of the dynamic fracture of metallic discs at the interface between two colliding detonation wave fronts

Kevin J. P. Reddy, Cornelis Jean Terblanche, Pieter J. Konig

Author Affiliations +

Proceedings Volume 5580, 26th International Congress on High-Speed Photography and Photonics; (2005) https://doi.org/10.1117/12.567051
Event: 26th International Congress on High-Speed Photography and Photonics, 2004, Alexandria, Virginia, United States

Abstract

In this paper the dynamic fragmentation behavior of a metal disc, positioned at the interface between colliding detonation wave fronts, is investigated. Flash x-ray radiography images from both 150kV and 450kV sytems were obtained to study the break-up phenomena of the metal disc between two similar explosive charges initiated simultaneously. The study was limited to discs of oxygen free high purity copper and an aluminium alloy (6061 T6). During the inititial shock loading phase the disc is stretched accompanied by the formation of spalling fragment rings. At a later stage discrete fragment rings are formed, which fly outward in an expanding disc fashion. The measured discrete fragment velocities ranged between 0.19 mm/μs and 2.7 mm/μs, depending on the material type. Flash x-ray radiography data at specific times is compared with numerical simulations performed using 3D-AutodynTM. Experimental techniques, procedures and results will be presented for the different metals.

Citation Download Citation

Kevin J. P. Reddy, Cornelis Jean Terblanche, and Pieter J. Konig "Flash x-ray radiography study of the dynamic fracture of metallic discs at the interface between two colliding detonation wave fronts", Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); https://doi.org/10.1117/12.567051

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