Normal impact of truncated oval-nosed projectiles on stiffened plates

The objective of this paper is to investigate the perforation capability of projectiles against stiffened plates and to determine how many stiffened plates can be perforated by projectiles. Some important experimental results on the perforation of stiffened plates, of a variety of configurations, by truncated oval-nosed projectiles at normal impact are introduced. A four-stage analytical model is formulated for the dynamic perforation of stiffened plates by rigid projectiles. By adopting an energy method, the model can be used to predict accurately the residual velocity of the projectiles. Numerical simulations have been performed for projectiles against single and layered plates adopted in the experiments. The perforation process is explored and deformation and failure modes are obtained. Good agreement is obtained between the numerical simulations, theoretical predictions and experimental results.

[1]  Gilbert Y. Grondin,et al.  Stiffened steel plates under combined compression and bending , 2003 .

[2]  Jonathan Awerbuch,et al.  A Mechanics Approach to Projectile Penetration , 1970 .

[3]  Werner Golsdmith,et al.  Penetration and perforation processes in metal targets at and above ballistic velocities , 1971 .

[4]  Duan Zhuo-ping.  The experimental and theoretical research for end-point trajectory of warhead penetrating ribbings structural target , 2005 .

[5]  James M. Kelly,et al.  A phenomenological penetration model of plates , 1983 .

[6]  Werner Goldsmith,et al.  The mechanics of penetration of projectiles into targets , 1978 .

[7]  Weidong Song,et al.  Failure analysis of plastic spherical shells impacted by a projectile , 2006 .

[8]  Burton Paul,et al.  Oblique perforation of a thin plate by a truncated conical projectile , 1959 .

[9]  Luke A. Louca,et al.  Experimental and numerical studies on the response of stiffened plates subjected to gas explosions , 1999 .

[10]  S. J. Cimpoeru,et al.  A study of the perforation of aluminium laminate targets , 1998 .

[11]  C. S. Smith,et al.  STRENGTH OF STIFFENED PLATING UNDER COMBINED COMPRESSION AND LATERAL PRESSURE , 1992 .

[12]  Werner Goldsmith,et al.  Normal and Oblique Impact of Cylindro-Conical and Cylindrical Projectiles on Metallic Plates , 1986 .

[13]  John T. Katsikadelis,et al.  A realistic estimation of the effective breadth of ribbed plates , 2002 .

[14]  Q Chen,et al.  Stiffened Steel Plates under Compression and Bending , 1998 .

[15]  J. J. R. Cheng,et al.  Buckling of stiffened steel plates—a parametric study , 1999 .

[16]  G. G. Corbett,et al.  Impact loading of plates and shells by free-flying projectiles: A review , 1996 .

[17]  Khosrow Ghavami.  Experimental study of stiffened plates in compression up to collapse , 1994 .

[18]  S. R. Bodner,et al.  An investigation of oblique perforation of metallic plates by projectiles , 1977 .

[19]  R. L. Woodward,et al.  The interrelation of failure modes observed in the penetration of metallic targets , 1984 .

[20]  S. R. Bodner,et al.  Dynamic perforation of viscoplastic plates by rigid projectiles , 1983 .

[21]  S. R. Bodner,et al.  Analysis of the mechanics of perforation of projectiles in metallic plates , 1974 .

[22]  Vemuri Madhu,et al.  Normal and oblique impact of a kinetic energy projectile on mild steel plates , 1992 .

[23]  Werner Goldsmith,et al.  Non-ideal projectile impact on targets , 1999 .

[24]  Weidong Song,et al.  A study of the perforation of stiffened plates by rigid projectiles , 2005 .

[25]  Zhang Zhong-guo.  The experimental research for projectile penetrating the structural target with rebar , 2004 .

[26]  N. E. Shanmugam,et al.  Local buckling of stiffened plates in offshore structures , 1996 .

[27]  D. Faulkner,et al.  Synthesis of welded grillages to withstand compression and normal loads , 1973 .

[28]  Dewey H. Hodges,et al.  Tripping of thin-walled plating stiffeners in axial compression , 1990 .

[29]  Eivind Steen.  Elastic buckling and postbuckling of eccentrically stiffened plates , 1989 .