Mechanical Performance of Spacecraft Protection Structure Under Hypervelocity
نویسندگان
چکیده
منابع مشابه
RF Signatures of Hypervelocity Impacts on Spacecraft
We investigate the radio frequency (RF) signature resulting from a hypervelocity impact on a spacecraft. While hypervelocity impactors, consisting of meteoroids, dust and orbital debris, are known to cause mechanical damage to satellites, very little is understood about the electrical effects associated with an impact. We present a theory to describe the behavior of the plasma produced from a h...
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Hypervelocity collisions with space debris (SD, natural meteoroids and man-made artifacts) can significantly affect the performance of spacecraft. Here, I use an adaptivemesh Eulerian hydrodynamic code, Mie-Grüneisen solid-mechanics, and a simple material-failure model, running on a modern PC, to analyze the protection afforded by a nominal two-plate aluminum shield to hypervelocity collisions ...
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Low Earth orbital debris impacts on the external surfaces of satellites have increased dramatically in recent years. Polyimides are used as the outer layer of thermal control insulation blankets, covering most of the external spacecraft surfaces that are exposed to the space environment. A recently developed material, named polyhedral oligomeric silsesquioxane (POSS)-polyimide, shows significan...
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Experimental data are shown for survival of fossilized diatoms undergoing shocks in the GPa range. The results were obtained from hypervelocity impact experiments which fired fossilized diatoms frozen in ice into water targets. After the shots, the material recovered from the target water was inspected for diatom fossils. Nine shots were carried out, at speeds from 0.388 to 5.34 km s(-1), corre...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2021
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/1855/1/012032