Phenomenology of rapid projectile penetration into granular soils
نویسندگان
چکیده
منابع مشابه
Penetration of a projectile by impact into a granular medium
When a solid sphere drops in a granular medium, an impact crater is created. The penetration of the projectile in the granular bed as a function of the impact energy is evaluated theoretically using a simple model including a friction law between the projectile and the grains, a viscous dissipation in the bed and a force from the collisions between the projectile and the granular material. This...
متن کاملmechanics of projectile penetration into non-cohesive soil targets
investigation of projectiles penetration phenomenon has been carried out in non-cohesive soil (sand) targets under dry, saturated and compacted conditions. analytical studies have been performed on the linear and non-linear soil models to obtain penetration depth formulae for ogival nose projectile and the results are verified by experimental studies. in present work, three ogival nose projecti...
متن کاملMulti-objective Optimization of a Projectile Tip for Normal Penetration
The main purpose of the present work is multi-objective shape optimization of a projectile tip for impacting and normal penetrating. Velocity drop, weight and inner volume of projectile have been considered as three conflicting objective functions. For this purpose, at the first step, finite element modeling was done using ABAQUS/Explicit and projectile penetration was examined in different ge...
متن کاملPenetration of spherical projectiles into wet granular media.
We measure experimentally the penetration depth d of spherical particles into a water-saturated granular medium made of much smaller sand-sized grains. We vary the density, size R, and velocity U of the impacting spheres, and the size δ of the grains in the granular medium. We consider velocities between 7 and 107 m/s, a range not previously addressed, but relevant for impacts produced by volca...
متن کاملPenetration of Granular Projectiles into a Water Target
The penetration of low-speed projectiles into a water target has been studied in the last several years to understand the physics behind the formation and collapse of cavities. In such studies, the projectiles employed were solid bodies or liquid drops. Here we report similar impact experiments using granular projectiles, with the aim to investigate how the morphology of the cavities is determi...
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ژورنال
عنوان ژورنال: International Journal of Impact Engineering
سال: 2015
ISSN: 0734-743X
DOI: 10.1016/j.ijimpeng.2015.06.002