Journal ArticleDOI
Interaction of Soil and Penetration Projectile
TLDR
In this paper, a terradynamic penetrator is considered and some interaction characteristics such as the added mass and the interaction pressure distribution are calculated, and the magnitude of added mass is found to be small compared to the penetrator's mass.Abstract:
The motion of a terradynamic penetrator is formulated, and some interaction characteristics as the added mass and the interaction pressure distribution are calculated. The magnitude of the added mass is found to be small compared to the penetrator’s mass. The expression for the interaction pressure is shown to be composed of a static and a dynamic term. The calculated stresses and masses can be used for the dynamic analysis of the penetrator’s structure.read more
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A coupled DISC – 1D variational-difference approach to simulate the rigid projectile penetration into a concrete medium
TL;DR: In this article, a new approach to analyze penetration of a rigid projectile into a concrete medium is presented, which is based on the previously developed DISCS model approach in which the concrete medium was subdivided into discs, responding in the radial direction under plain strain conditions.
Journal ArticleDOI
Rigid projectile penetration into a concrete medium: A new model:
TL;DR: In this paper, a new simplified model to analyze the penetration of a rigid projectile into a concrete thick medium is presented, where the concrete medium is modeled by a set of discs, responding in the radial directi...
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Issues in modelling the penetration of thick targets by rigid long rods
TL;DR: This study refutes Rosenberg et al. remarks and raises doubts regarding the key assumptions of their approximate approach, in order to clarify issues under dispute and contribute to the ongoing discussion on this important topic.
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Constitutive equations for reliable projectile penetration analysis into a concrete medium
TL;DR: In this article, the fundamental question of the mechanical properties representation in penetration analysis and its effect on the calculated results is analyzed and the results of penetration analysis into a concrete tarface are analyzed.
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The optimal nose shape of a projectile penetrating into targets described by a locked hydrostat and a linear shear failure relationship
TL;DR: In this article, the optimal nose shape of an axisymmetric rigid projectile which penetrates into a semi-infinite target is analyzed using the Euler-Poisson equation.