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The design of protective structures as well as of warheads defeating such structures is usually an iterative process that requires parametric studies of the warhead and/or the target. For practical applications—no matter if design or mission planning—solutions have to be rapidly available and reliable. However, since high-accuracy results require long calculation times the responsible analysts usually have to make trade-offs: they can either generate results in a very short time or provide a high level of accuracy. Empirical models generate results within less than a second, but they are mostly valid in only a narrow range of application. Accuracy thus drops to a minimum for a wider parameter space considering different materials, dimensions, or engagement scenarios. At the other end of the scale, hydrocodes deliver high-accuracy results for a wide range of applications but the computational effort is significant and the time to obtain a solution ranges from hours to days. Engineering codes, in contrast, can deliver reasonable accuracy results within a comparably short time between a few seconds to a maximum of a few minutes (Fig. 1). |
