Penetration of Double-Layer Targets with an Outer Ceramic Layer under the Action of an Impactor at an Angle
- 23 Downloads
A three-dimensional numerical simulation of interaction between an impactor directed at an angle and a double-layer target with an outer ceramic layer is performed. It is shown that the presence of a ceramic layer normalizes the penetration process: the main deformation and displacement of the target elements occur so as if the action of the impactor is directed along a normal to the target surface. A quite intense rotation of the impactor remains at the final stages of interaction is observed. Experimental data and propositions on the transformation of the impact at an angle into an equivalent impact along the normal are used to develop an approximate analytical technique for calculating the limiting rate of penetrating the double-layer ceramic–metallic target under the action of the impactor at an angle.
Keywordspenetration double-layer ceramic–metallic target action at an angle limiting penetration rate
Unable to display preview. Download preview PDF.
- 1.I. F. Kobylkin and V. V. Selivanov, Materials and Light Armor Structures (Izd. Mosk. Gos. Tekh. Univ., Moscow, 2014) [in Russian].Google Scholar
- 2.V. A. Grigoryan, N. S. Dorokhov, I. F. Kobylkin, et al., Partial Questions of Finite Ballistics (Izd. Mosk. Gos. Tekh. Univ., Moscow, 2006) [in Russian].Google Scholar
- 4.R. Zaera, “Ballistic Impact on Polymer Matrix Composites, Composite Armor, Personal Armor,” in Impact Engineering of Composite Structures, Ed. by S. Abrate (Springer, New York, 2011).Google Scholar
- 7.D. Yaziv, S. Chocron, C. E. Anderson, and D. J. Grosch, “Oblique Penetration in Ceramic Targets,” in Proc. 19th Int. Symp. on Ballistics, Inerlaken, Switzerland, 2001.Google Scholar
- 8.L. A. Merzhievskii and V. P. Urushkin, “Oblique Collision of a High-Speed Particle with a Shield,” Fiz. Goreniya Vzryva 16 (5), 81–87 (1980) [Combust., Expl., Shock Waves 16 (5), 551–555 (1980)].Google Scholar
- 9.G. R. Johnson, W. H. Cook, “A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates and High Temperatures,” in Proc. 7th Int. Symp. on Ballistic (The Netherlands, 1983), pp. 541–547.Google Scholar
- 10.G. R. Johnson and T. J. Holmquist, “An Improved Computational Constitutive Model for Brittle Materials,” in High Pressure Science and Technology (AIP Press, New York, 1994).Google Scholar
- 11.The Science of Armour Materials, Ed. by I. G. Crouch (Elsevier, 2017)Google Scholar
- 12.I. F. Kobylkin, “Penetration of Double-Layer Targets with an Outer Ceramic Layer and Optimization of Their Structure,” Fiz. Goreniya Vzryva 53 (4), 126–133 (2017) [Combust., Expl., Shock Waves 53 (4), 483–489 (2017)].Google Scholar
- 13.B. James, “Practical Issues in Ceramic Armor Design,” Ceramic Trans. 134, 33–44 (2002).Google Scholar