Analysis of Normal Penetration of Ogive -Nose Projectiles into Thin Metallic Plates
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.
[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.
[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.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:60869", author = "M. H. Pol and A. Bidi and A.V. Hoseini and G.H. Liaghat", title = "Analysis of Normal Penetration of Ogive -Nose Projectiles into Thin Metallic Plates", 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.", volume = "3", number = "2", pages = "208-4", }