Modeling of Mechanical Properties of Highly Inhomogeneous Systems under External Action

被引:1
作者
Aleksandrov, P. A. [1 ]
Svechnikov, A. B. [1 ]
Gorev, V. V. [1 ]
Ryan, E., V [2 ]
Ryan, W. H. [2 ]
Stange-Love, H. K. [2 ]
机构
[1] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia
[2] New Mexico Inst Min & Technol, Socorro, NM 87801 USA
关键词
D O I
10.1134/S1063784219070028
中图分类号
O59 [应用物理学];
学科分类号
摘要
Laboratory tests that were supplemented by a new numerical model have been conducted to study mechanical properties of asteroids with a highly heterogeneous structure. The functional form of the method of molecular dynamics, which was extended to macroscopic spatial scales, has been used in the numerical model. In the experiment, targets that were composed of glass balls, which were bonded by conventional ice, interacted with fast impactors. High-speed cameras recorded the destruction process of the ice matrix and preservation of glass balls without damage. In parallel, parameterization of the mathematical model was performed and calculated data have been compared with the experiment. The energy range of impactors when the impact causes deflection of the target with minimal destruction was able to be determined.
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页码:998 / 1005
页数:8
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