Journal ArticleDOI
On the hydrodynamic approximation for long-rod penetration
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In this paper, the authors show that even at impact velocities as high as 4.0 km/s, the instantaneous penetration efficiencies fall below that expected from hydrodynamic theory.About:
This article is published in International Journal of Impact Engineering.The article was published on 1999-01-01. It has received 37 citations till now. The article focuses on the topics: Hydrodynamic theory & Penetration (firestop).read more
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MonographDOI
Collision phenomena in liquids and solids
TL;DR: A comprehensive account of the physical foundations of collision and impact phenomena and their applications in a multitude of engineering disciplines can be found in this paper, including theoretical and applied mechanics, physics and applied mathematics, materials science, aerospace, mechanical and chemical engineering, and terminal ballistics.
Patent
Mosaic extremity protection system with transportable solid elements
TL;DR: In this paper, a flexible armor system adaptable to a garment suitable for extremity protection uses planar, polygon-shaped solid elements made of ceramic cores wrapped in high strength fabric and arranged with ratable edge and intersection protection as a flexible mosaic array which is bonded between an elastic strike side spall cover and a high tensile strength flexible backer layer, further supported by a substantial fiber pack.
Journal ArticleDOI
Rigid and eroding projectile penetration into concrete targets based on an extended dynamic cavity expansion model
TL;DR: In this article, a hyperbolic yield criterion and Murnaghan equation of state were introduced to describe the plastic behavior of concrete material under projectile penetration, and an extended dynamic cavity expansion model was proposed.
Journal ArticleDOI
Normal penetration of an eroding projectile into an elastic–plastic target
TL;DR: In this article, the authors describe the normal penetration of a deformable projectile into an elastic-plastic target, where the force imposed on the projectile by the target is generally a complex function of the strength of the target material, the projectile velocity, its diameter and shape, as well as the instantaneous penetration depth.
Journal ArticleDOI
The dependence of penetration velocity on impact velocity
D.L. Orphal,Charles E. Anderson +1 more
TL;DR: In this article, the Tate-Alekseevskievskii model was shown to have a linear relationship between penetration and impact velocity, where U and V are the penetration and velocity, respectively, and a and b are constants for given projectile and target materials.
References
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Journal ArticleDOI
CTH: A three-dimensional shock wave physics code
TL;DR: CTH as mentioned in this paper is a software system under development at Sandia National Laboratories Albuquerque to model multidimensional, multi-material, large deformation, strong shock wave physics, and fracture.
Journal ArticleDOI
Explosives with Lined Cavities
TL;DR: In this article, a mathematical theory of this essentially new phenomenon is presented together with some of the experimental data that aided in the formulation and testing of the theory, which is separated into two phases: first, the formation of part of the metal liner into a long thin jet traveling longitudinally at very high velocities (30,000 ft/sec.) and, second, the forcing aside of the target material by the extremely high pressures (0.3m atmo...
Journal ArticleDOI
A theory for the deceleration of long rods after impact
TL;DR: A modified hydrodynamic theory which takes some account of strength effects is used to predict the deceleration of a long rod after striking a target as discussed by the authors, and the results are then compared with experimental data from X-ray observations.
Journal ArticleDOI
A constitutive model for strain rates from 10−4 to 106 s−1
D. J. Steinberg,C. M. Lund +1 more
TL;DR: An addition to the Steinberg–Guinan high strain‐rate constitutive model is developed that has successfully reproduced a number of rate‐dependent, shock‐induced phenomena in tantalum, such as precursor on reshock, precursor decay, and shock smearing.