Stability analyses of the mass abrasive projectile high-speed penetrating into concrete target. Part II: Structural stability analyses

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• 作者：Hao Wu (1) (2)
  Xiao-Wei Chen (1)
  Qin Fang (2)
  Li-Lin He (1)
  
  1. Institute of Systems Engineering ; China Academy of Engineering Physics ; 621999 ; Mianyang ; China
  2. State Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact ; PLA University of Science and Technology ; 210007 ; Nanjing ; China
  
• 关键词：Projectile ; High ; speed penetration ; Concrete ; Oblique angle ; Attacking angle ; Asymmetrical nose abrasion
• 刊名：Acta Mechanica Solida Sinica
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：30
• 期：6
• 页码：943-955
• 全文大小：693 KB
• 参考文献：1. Forrestal, M.J., Frew, D.J., Hanchak, S.J., et al.: Penetration of grout and concrete targets with ogive-nose steel projectiles. Int. J. Impact Eng. 18, 465鈥?76 (1996) CrossRef
  2. Frew, D.J., Hanchak, S.J., Green, M.L., et al.: Penetration of concrete targets with ogive-nose steel rods. Int. J. Impact Eng. 21, 489鈥?97 (1998) CrossRef
  3. He, X., Xu, X.Y., Sun, G.J., et al.: Experimental investigation on projectiles high-velocity penetration into concrete targets. Chin. J. Explosion and Shock Waves 30, 1鈥? (2010) (in Chinese)
  4. Mu, Z.C., Zhang, W.: An investigation on mass loss of ogival projectiles penetrating concrete targets. Int. J. Impact Eng. 38, 770鈥?78 (2011) CrossRef
  5. Wu, H.J., Huang, F.L., Wang, Y.N., et al.: Experimental investigation on projectile nose eroding effect of high-velocity penetration into concrete. Acta Armamentarii 33, 48鈥?5 (2012) (in Chinese)
  6. Erengil, M.E., Cargile, D.J.: Advanced projectile concept for high speed penetration of concrete targets. In: Proceedings of 20th International Symposium on Ballistics. Orlando (2002)
  7. Liang, B., Chen, X.W., Ji, Y.Q., et al.: Experimental study on deep penetration of reduced-scale advanced earth penetrating weapon. Chin. J. Explosion and Shock Waves 30, 1鈥? (2010) (in Chinese)
  8. Silling, S.A., Forrestal, M.J.: Mass loss from abrasion on ogive-nose steel projectiles that penetrate concrete targets. Int. J. Impact Eng. 34, 1814鈥?820 (2007) CrossRef
  9. Chen, X.W., He, L.L., Yang, S.Q.: Modeling on mass abrasion of kinetic energy penetrator. Eur. J. Mech. A Solids 29, 7鈥?7 (2010) CrossRef
  10. He, L.L., Chen, X.W., He, X.: Parametric study on mass loss of penetrators. Acta Mech. Sin. 26, 585鈥?97 (2010) CrossRef
  11. Zhao, J., Chen, X.W., Jin, F.N., et al.: Depth of penetration of high-speed penetrator with including the effect of mass abrasion. Int. J. Impact Eng. 37, 971鈥?79 (2010) CrossRef
  12. Lundgren, R.G.: High velocity penetrator. SAND94-2724C, Conf-9411142-1 (1994)
  13. Zhao, J., Chen, X.W., Jin, F.N., et al.: Analysis on the bending of a projectile induced by asymmetrical mass abrasion. Int. J. Impact Eng. 39, 16鈥?7 (2012) CrossRef
  14. Zhao, J., Chen, X.W., Jin, F.N., et al.: Bending of normal penetrating projectiles induced by asymmetrical mass abrasion. Chin. J. Explosion and Shock Waves 31, 119鈥?26 (2011) (in Chinese)
  15. Zhao, J., Chen, X.W., Jin, F.N., et al.: Cartridge design of a high-speed projectile considering mass abrasion. Chin. J. Explosion and Shock Waves 31, 481鈥?89 (2011) (in Chinese)
  16. Zhao, J., Chen, X.W., Jin, F.N., et al.: Study on the penetration depth of penetrator with including the effect of mass loss. Chinese Journal of Theoretical and Applied Mechanics 42, 212鈥?18 (2010) (in Chinese)
  17. Chen, X.W.: Mechanics of structural design of EPW (I): The penetration/perforation theory and the analysis on the cartridge of projectile. Chin. J. Explosion and ShockWaves 25, 499鈥?05 (2005) (in Chinese)
  18. Pi, A.G., Huang, F.L.: Dynamic behavior of a slender projectile on oblique penetrating into concrete target. Chin. J. Explosion and Shock Waves 27, 331鈥?37 (2007) (in Chinese)
  19. Wang, Y.N., Huang, F.L., Duan, Z.P.: Bending of projectile with small angle of attack during high-speed penetration of concrete targets. Chin. J. Explosion and Shock Waves 30, 598鈥?06 (2010) (in Chinese)
  20. Wu, H., Chen, X.W., Fang, Q., et al.: Stability analyses of the mass abrasive projectile high-speed penetrating into concrete target. Part I: Engineering model for the mass loss and noseblunting of the ogive-nose projectile. Acta Mech. Sin. DOI: 10.1007/s10409-014-0090-1
  21. Forrestal, M.J., Altman, B.S., Cargile, J.D., et al.: An empirical equation for penetration depth of ogive-nose projectiles into concrete targets. Int. J. Impact Eng. 15, 395鈥?05 (1994) CrossRef
  22. Chen, X.W., Li, Q.M.: Deep penetration of a non-deformable projectile with different geometrical characteristics. Int. J. Impact Eng. 27, 619鈥?37 (2002) CrossRef
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• 刊物类别：Engineering
• 刊物主题：Theoretical and Applied Mechanics
  Mechanics, Fluids and Thermodynamics
  Engineering Fluid Dynamics
  Numerical and Computational Methods in Engineering
  Chinese Library of Science
  
• 出版者：The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of
• ISSN：1614-3116

文摘

The initial oblique and attacking angles as well as the asymmetrical nose abrasion may lead to bending or even fracture of a projectile, and the penetration efficiency decreases distinctly. The structural stability of a high-speed projectile non-normally penetrating into concrete and the parametric influences involved are analyzed with the mass abrasion taken into account. By considering the symmetrical or asymmetrical nose abrasion as well as the initial oblique and attacking angles, both the axial and the transverse drag forces acting on the projectile are derived. Based on the ideal elastic-plastic yield criterion, an approach is proposed for predicting the limit striking velocity (LSV) that is the highest velocity at which no yielding failure has occurred and the projectile can still maintain its integral structural stability. Furthermore, some particular penetration scenarios are separately discussed in detail. Based on the engineering model for the mass loss and nose-blunting of ogive-nose projectiles established in Part I of this study, the above approach is validated by several high-speed penetration tests. The analysis on parametric influences indicates that the LSV is reduced with an increase in the asymmetrical nose abrasion, the length-diameter-ratio, and the concrete strength, as well as the oblique and attacking angles. Also, the LSV raises with an increase in the initial caliber-radius-head (CRH) and the dimensionless cartridge thickness of a projectile.