Abstract
AbstractThe previous analysis of the Cylinder test required the treatment of different wall thicknesses and wall materials separately. To fix this, the Gurney analysis is used, but this results in low values for full‐wall standard, ideal explosives relative to CHEETAH analyses. A new constant metal‐density model is suggested, which takes account of the thinning metal wall as the cylinder expands. With this model, the inner radius of the metal cylinder moves faster than the measured outer radius. Additional small corrections occur in all cylinders because of energy trapped in the copper walls. Also, the half‐wall cylinders have a small correction because the relative volumes of the gas products are smaller at a given outside wall displacement. The Fabry‐Perot and streak camera measurements are compared. The Fabry method is shown to equate to the constant density model.
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