INTERFACE DEFEAT OF LONG RODS IMPACTING BOROSILICATE GLASS EXPERIMENTAL RESULTS
Abstract
Dwell and interface defeat for a brittle material without any lateral confinement was investigated experimentally. Reverse impact experiments with gold rods and borosilicate glass targets without and with a small Cu buffer on top of the glass were performed. Simultaneous flash X-rays and a high-speed optical camera recorded the results of the impacts. Results show that the Cu buffer increases the velocity required for penetration by a factor of 2. The dwell-penetration velocity is estimated to be 850 50 m/s. Stable dwell is possible for impact velocities up to 890 m/s; whereas without a Cu buffer, penetration starts at impact velocities 450 m/s with only a short dwell phase after impact. It was also found that no dwell exists above an impact velocity of 896 6 m/s. For experiments where dwell transitioned to penetration, the post-dwell penetration velocity is the same as the penetration velocity where there is little or not dwell.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2009
- Accession Number
- ADA637029
Entities
People
- Charles E. Anderson Jr.
- Dennis L. Orphal
- Matthias Wickert
- Thilo Behner
- Timothy J Holmquist
- Volker Hohler
Organizations
- Southwest Research Institute