Numerical Simulation of Penetration by explosively-formed projectiles

✍ Scribed by J. A. Zukas; C. A. Weickert; P. J. Gallagher

• Book ID: 105355855
• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 602 KB
• Volume: 18
• Category: Article
• ISSN: 0721-3115
• DOI: 10.1002/prep.19930180505

✦ Synopsis

Abstract

Numerical solution techniques have advanced to the point where calculations of explosively‐formed penetrator formation and penetration can be performed as a matter of routine on current wave propagation computer codes, popularly known as hydrocodes. Results, however, depend to a very large extent on the experience of the code user and familiarity with the capabilities and eccentricities of the particular code used for simulations. In this paper we look at the effects of spatial resolution and material strength on the simulation of penetration of thick mild steel plates by an explosively‐formed penetrator of Armco iron. For good correlation with experiments, careful attention must be paid to the details of the computational grid. Likewise, material data must be determined from experiments appropriate for the range of strain rates encountered in the impact event.