A high velocity plate penetration hole diameter relationship based on late time stagnation point flow concepts

Chant, Lawrence J. De

doi:10.1016/j.amc.2004.12.047

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Hill [7] proposed another model with parameter C 2 > 0, but the difference between the two models being very small, only one of the models with model parameter C 2 = 0 is presented in Table 1. A model for the prediction of hole-diameter, based on the principle of fluid mechanics, was developed by Chant [4], which is also of this type. Piekutowski model [16,17] is independent of the velocity of strike because it was developed for one velocity of strike (6.7 km/s), therefore, it can not be used for any other data.…”

Section: Models For Prediction Of Hole-diametermentioning

confidence: 99%

“…14 members (individual nos. [3][4][5][6][7][8][9][10][11][12][13][14][15][16] are generated in each generation through the process of crossover as shown by continuous lines. It may be noted here that the process It may be seen that all individuals are not involved in the process of reproduction because their selection is based on the process of tournament selection.…”

Section: Application Of Genetic Algorithmmentioning

confidence: 99%

“…The description of material properties is then greatly simplified, and correction terms are added to the original Bernoulli equation to account for target and projectile strength. Though such fluid mechanics-based analytical solutions for estimating hole-diameter under hypervelocity impact are available in literature [4,5], these models also involve empirical constants. The influence of body curvature of the target on the penetration hole size was included in [6], but its effect was found to be of the order of other uncertainties and was thus negligible.…”

mentioning

confidence: 99%

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Characterization of hole-diameter in thin metallic plates perforated by spherical projectiles using genetic algorithms

et al. 2010

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The empirical and semi-empirical models available in literature for the estimation of hole-diameter in thin metallic plates by the strike of spherical projectile are mostly valid for the data for which these have been developed. This may be partly attributed to the form of the model employed for their development. The behavioural constraints and the limiting conditions are not satisfied by these models. In the present paper, some of the non-dimensional models have been developed that satisfy the behavioural constraints and limiting conditions. The data used in the development of earlier statistical models has been reanalyzed for the development of new models for the characterization of hole-diameter with a view towards seeing whether better characterization is possible. The genetic algorithm coupled with the penalty function method has been used for the constrained optimization of model parameters that result in low errors and high correlation coefficients.

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Section: Models For Prediction Of Hole-diametermentioning

confidence: 99%