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Application of the RHT concrete model for predictive simulations of the penetration into adobe targets

 
: Sauer, Christoph; Heine, Andreas; Riedel, Werner; Wickert, Matthias

Chocron, Sidney (Ed.):
30th International Symposium on Ballistics 2017. Proceedings. Vol.2 : Long Beach, California, USA, September 11-15, 2017
Lancaster, Pa.: DEStech Publications, 2017
ISBN: 978-1-60595-419-6
S.2093-2104
International Symposium on Ballistics <30, 2017, Long Beach/Calif.>
Englisch
Konferenzbeitrag
Fraunhofer EMI ()

Abstract
In the present paper, we review and extend our results concerning predictive numerical simulations of the penetration into adobe on the basis of the RHT concrete model [C. Sauer et al., Int. J. Impact Engng., 104 (2017) 164-176]. We apply this model to the theoretical description of adobe in a hydrocode. For this purpose a set of material parameters is derived on the basis of published data, own material tests, and engineering assumptions. Available ballistic results for the penetration of spherical steel projectiles into semi-infinite and finite thickness adobe targets are used for validating our approach. As a result, we obtain a hydrocode model which is expected to predict a wide range of penetration scenarios into adobe. The predictive character is exemplarily demonstrated by the successful reproduction of the instability within the penetration process and residual velocities of differently shaped tungsten heavy alloy projectiles.

: http://publica.fraunhofer.de/dokumente/N-467058.html