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- W222376855 abstract "Abstract : The results from pretest predictions for penetration experiments of tungsten alloy projectiles into three generic target types have been documented. Predictions were made using two analytical models (the Walker-Anderson model and the MITI model) and with numerical simulation (using the wave propagation computer code CTH). The targets--a finite-thick RHA target; oblique, high-hard steel, spaced-plate target; and a ceramic laminate target-were purposely designed to be defeated, and penetration of the residual projectile into an RHA witness pack was designated as the metric for comparison. The purpose of this study can be regarded as twofold. First, a pretest prediction of any experiment is always desirable. For these targets, the predictions provide an estimate of the residual projectile length and velocity, as well as the resulting penetration of the residual rod into an RHA witness pack. Furthermore, specific details of the experiment can more readily be analyzed with modeling; for example, some quantities cannot easily be measured in an experiment, such as penetration velocity or projectile erosion rate. Second, a subsequent comparison of these predictions to the actual experimental outcomes provides a quantitative measure of the state-of-the-art predictive capability for these generic target types using hydrocodes and analytical models. Analysis of discrepancies then suggests the most prudent areas for improvement in both the analytical and numerical models. Armor technology target, RHA, Spaced-plate target, Ceramic laminate target, CTH, Walker-Anderson model, Long-rod penetration, Hypervelocity impact, Penetration mechanics, Witness pack." @default.
- W222376855 created "2016-06-24" @default.
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- W222376855 date "1994-04-01" @default.
- W222376855 modified "2023-09-27" @default.
- W222376855 title "Pretest Predictions of Long-Rod Interactions with Armor Technology Targets" @default.
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