Plate Response Analysis Using Shock Tube
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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Rectangular aluminum plates, 0.508 and 0.813 mm thick, were subjected to increasingly higher levels of reflected shock pressures, ranging from 77 to 339 kPa, at the closed-off end of a shock tube. The resulting large transient deflections of the plates were measured optically and compared with counterpart finite difference code calculations. The incorporation of a simple piston theory model in the code to account for the fluid-plate interaction was found to improve correlation with test results. Keywords Thin plates Large dynamic response Elastic-plastic analysis Fluid-structure interaction Piston theory Reflected shock wave loadings Finite difference analysis Correlation of displacement histories.
- Properties of Metals and Alloys