SPIDER 2 Tests - Response Of Typical Wall Panels To Debris And Fragment Impact
ARMY ENGINEERING AND SUPPORT CENTER HUNTSVILLE AL
Pagination or Media Count:
As part of the U.S. Department of Defense Explosives Safety Board DDESB Project ESKIMORE, the Science Panel Impact Debris Evaluation and Review SPIDER test program has been planned to develop improved predictions for the hazards inside an exposed site ES from fragments and debris. Data collected includes the mass and velocity required for perforation of the test cross-section and characteristics of all debris produced inside the ES. The 2004 SPIDER 1 test program tested the hazard from high-angle debris striking typical roof sections at terminal velocity. Similarly, the 2009 SPIDER 2 test program conducted at Redstone Arsenal tested the effect of debris and fragments impacting wall cross-sections. The wall response e.g. penetration, deformation, spalling, breaching, perforation to variable masses and velocities of spherical steel and concrete impactors was determined. Impact velocity and residual velocity of perforating fragments and ES debris were measured for each test. A trajectory analysis was used to choose SPIDER 2 steel and concrete impactor characteristics consistent with the masses, initial potential explosion site PES debris velocities 3000 fps, and low launch angles 15 degrees that can critically impact walls at 500 to 3000 ft from the PES. Primary steel fragments, with initial velocities of 5000 fps, were also included in the trajectory analysis.
- Safety Engineering
- Structural Engineering and Building Technology
- Ammunition and Explosives