Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30174
Analysis of Normal Penetration of Ogive -Nose Projectiles into Thin Metallic Plates

Authors: M. H. Pol, A. Bidi, A.V. Hoseini, G.H. Liaghat

Abstract:

In this note, a theoretical model for analyzing of normal penetration of the ogive – nose projectile into metallic targets is presented .The failure is assumed to be asymmetry petalling and the analysis is performed by using the energy balance and work done .The work done consist of the work required for plastic deformation Wp, the work for transferring the matter to new position Wd and the work for bending of the petals Wb. In several studies, it has been shown that we can neglect the loss of energy by temperature. In this present study, in first, by assuming the crater formation after perforation, the value of work done is calculated during the normal penetration of conical projectiles into thin metallic targets. Then the value of residual velocity and ballistic limit of the projectile is predicated by using the energy balance. In final, theoretical and experimental results is compared.

Keywords: Ogive Projectile, normal impact, penetration, thinmetallic target.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1078026

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2156

References:


[1] Booth, Backman ME, Goldsmith W. The mechanics of penetration of projectiles into targets. Int J Engng Sci 1978; 16:1-99.
[2] Corbett GG, Reid SR, Johnson W. Impact loading of plates and shells by free-flying projectiles: a review. Int. J Impact Engng 1996; 18:141-230.
[3] Goldsmith W. Non-ideal projectile impact on targets. Int J Impact Engng 1999; 22:95-395.
[4] Calder CA, Goldsmith W. Plastic deformation and perforation of thin plates resulting from projectile impact. Int. J Solids Struct. 1971; 7: 863- 81.
[5] Corran RSJ, Shadbolt PJ, Ruiz C. Impact loading on plates- an experimental investigation. Int J Impact Engng 1983; 1:3-22.
[6] Levy N, Goldsmith W. Normal impact and perforation of thin plates by hemispherically tipped projectiles-II, Experimental results. Int J Impact Engng 1984; 2:299-324.
[7] Levy N, Goldsmith W. Normal impact and perforation of thin plates by hemispherically tipped projectiles-I, Analytical considerations. Int J Impact Engng 1984;2:209- 29.
[8] Landkof B, Goldsmith W. Petalling of thin, metallic plates during penetration by cylindro-conical projectiles. Int. J Solids Struct 1985; 21:245- 66.
[9] Gupta NK, Madhu V. Normal and oblique impact of a kinetic energy projectile on mild steel plates. Int J Impact Engng 1992; 12:333-43.
[10] Gupta NK, Madhu V. An experimental study of normal and oblique impact of hard-core projectile on single and layered plates. Int J Impact Engng 1997; 19:395-414.
[11] Goldsmith W, Finnegan SA. Normal and oblique impact of cylindroconical and cylindrical projectiles on metallic plates. Int J Impact Engng 1986; 4:83-105.
[12] N.K Gupta, R. Ansari. Normal impact of ogive nosed projectiles on thin plates. Int J Impact Engng 2001; 25:641-660.
[13] M.Hossein Pol, Mechanics of oblique perforation of conical projectile into thin multi- layer targets, Master science thesis, Tarbiat Modares University, Iran (1997).
[14] M.H. Pol, G.H. Liaghat, Analysis of oblique penetration of conical projectiles into thin metallic targets, ATEM'07 Conference, JSMEMMD (2007).
[15] M.H. Pol, G.H. Liaghat, A.V.Hoseini, M.A.Akbari, Analysis of oblique penetration of anti ricochet teeth of conical projectiles into thin metallic targets,3rd IASME/WSEAS International conference on Continuum Mechanics (CM-08),Cambridge, UK, 180-185 (Feb. 2008).
[16] Joseph M.Karft , Surface friction in ballistic in ballistic penetration .J.appl.phys.26.No.10(1955).
[17] Thomson WT. An approximate theory of armor penetration. J App Mech 1955; 26:80-2.