AN ANALYTICAL PENETRATION MODEL BASED ON THE NORMAL CAVITY-EXPANSION THEORY

【Author】

Shiqiao Gao~*,Beijing Institute of Technology,China Lei Jin,Beijing Institute of Technology,China Haipeng Liu,Beijing Institute of Technology,China Xinjian Liang,Beijing Institute of Technology,China Li Han,Beijing Institute of Technology,China

【Abstract】

<正>To suit the normal cavity expansion of concrete target penetrated by a projectile,a Normal Curve Surface(NCS) coordinate system is constructed.Considering the dynamic behavior of material under high-velocity and high-pressure shock and assuming that the particle velocity,the wave propagation and the pressure are all in the normal direction of outer surface of the projectile nose,a set of dominating equations are established.The analytical solution of resistant forces on the projectile-nose is obtained.Some calculations and comparisons with tests are made.

【Keywords】

Penetration;;concrete target;;shock wave;;cavity expansion

References

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Springer Journals Database

Total: 16 articles

  • [1] D.J. Frew;;S.J. Hanchak;;M.L. Green;;M.J. Forrestal, Penetration of concrete targets with ogive-nose steel rods, International Journal of Impact Engineering,
  • [2] M.J. Forrestal;;D.J. Frew;;S.J. Hanchak;;N.S. Brar, Penetration of grout and concrete targets with ogive-nose steel projectiles, International Journal of Impact Engineering,
  • [3] Shi-qiao Gao;Hai-peng Liu;Ke-jie Li;Feng-lei Huang;Lei Jin, Normal expansion theory for penetration of projectile against concrete target, Applied Mathematics and Mechanics,
  • [4] Li QM,;Chen XW, Penetration into concrete targets by a hard projectile, Structures under shock and impactⅦ.Seventh international conference on structures under shock and impact,

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