Abstract
ABSTRACTIn this paper, two main research directions are used to investigate the shapedcharge phenomenon and to evaluate its performance. These directions are: (i)analytical and (ii) numerical simulation. The analytical direction is presented by amodel consisting of three main phases; these are: (i) jet formation, (ii) jet break-up,and (iii) jet penetration phases. The governing equations that predict the mainparameters associated with each phase are presented. These equations arecompiled into a computer program; the input data to the model is that of shapedcharge model xx. In numerical simulation direction, Autodyn-2D hydrocode is used tosimulate the xx shaped charge phenomena and to assess the predictions of theanalytical model.The predictions of the analytical model are compared with the correspondingmeasurements of the tested shaped charges of Ref. [8]; good agreement is generallyobtained. In addition, the present results of both research directions are mainlyconcerned with predicting the effects of some factors of shaped charge model xx onits performance. These factors are: (i) liner thickness, (ii) liner material, (iii) coneangle, (iv) type of explosive and (v) standoff distance. Samples of the predictedresults representing the effect of each studied factor on the associated parameterswith jet formation and jet penetration phases are presented with relevant analysisand discussions. It was found that the analytical results and the corresponding codepredictions were consistent. The obtained results recommended the use of powerfulexplosive, the decrease of cone angle and the increase of standoff distance, keepingthe jet continuity, for increasing the performance of shaped charge model xx.
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