Evaluation of the projectile penetration models in the metal and ceramic targets

Penetration of projectile in the combined targets is one of the most important issues in mechanics. In this article, penetration of projectile evaluation in three parts. The first part is related to models of penetration into metals, the second part is related to models of penetration by the dimensionless and the third part is related to penetration into ceramics. In the first section, in addition to reviewing analytical models of penetration, their categorization and summary are also have been stated. The models include the Poncelet Equation, the Hydrodynamic Theory, Modified Hydrodynamic Theory, Recht-Ipson, Tate - Alekseevskii, Cavity Expansion, Ravid-Bodner, Walker-Anderson, and simulation models. Model assumptions are fully determined and some data has been obtained from model predictions in comparison to empirical data. These assumptions contained rigid body penetration, abrasive penetration, sustained and transitional penetration, and full penetration. The second and third parts are investigated dimensionless models of penetration and penetration into ceramic – metal combined targets, respectively. In this article, basic models of projectile penetration in metal and ceramic targets were categorized. Also, precision analysis of these models was done.