Dynamic measurements of plastic deformation in a water‐filled aluminum tube in response to detonation of a small explosives charge

Article type: Research Article

Authors: Sandusky, Harold | Chambers, Paul^; | Zerilli, Frank | Fabini, Larry | Gottwald, William

Affiliations: Naval Surface Warfare Center/Indian Head Division, Code 920, 10901 New Hampshire Avenue, Silver Spring, MD 20903, USA | Naval Research Laboratory, Silver Spring, MD 20903, USA | Naval Surface Warfare Center/Carderock Division, Silver Spring, MD 20903, USA

Note: [] Corresponding author.

Abstract: Experiments have been conducted to benchmark computer code calculations for the dynamic interaction of explosions in water with structures. Aluminum cylinders with a length slightly more than twice their diameter were oriented vertically, sealed on the bottom by a thin plastic sheet, and filled with distilled water. An explosive charge suspended in the center of the tube plastically deformed but did not rupture the wall. Tube wall velocity, displacement, and strain were directly measured. The agreement among the three sets of dynamic data and the agreement of the terminal displacement measurements with the residual deformation were excellent.

Keywords: DYSMAS, shock validation, wall deformation, underwater detonation, computer modeling, streak photography, laser interferometry

Journal: Shock and Vibration, vol. 6, no. 3, pp. 125-132, 1999