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Modeling on the Shock Wave in Spheres Hypervelocity Impact on Flat Plates
Abstract
To estimate the geometric features of the wave front during the first complete propagation in the spherical-projectile, the Geometric Propagation Model (GPM) is built in this paper to describe the geometry of the shock wave front, which proposes an ellipse contour as a function of time and equivalent speed. The GPM identifies the geometric features of the wave front as a function of time and impact velocity successfully. Meanwhile, the attenuation of shock amplitude and peak pressure in the projectile is also analyzed with the GPM and simulations. The GPM may be applicable to hypervelocity events involving any monolithic materials as long as the equivalent speed could be supplied from theoretical calculation or numerical simulation.
DOI
10.12783/ballistics2019/33210
10.12783/ballistics2019/33210
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