OS0117 宇宙機表面材料のイジェクタ評価に関する研究(OS1-4 材料特性評価,OS-1 実験力学と計測技術2)

概要

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This paper describes about evaluation of ejecta emitted from surface of spacecraft materials, where ejecta is defined as fragments generated from space structures surfaces due to the impact of debris at hypervelocity. Since ejecta can cause great damage to a spacecraft, it is of primary importance to better understand the space debris environment in order to design safer spacecrafts. To reach this goal computational models have been developed so far. Unfortunately, regarding the impact flux, the models present important dissimilarities for debris sizes ranging from 100 μm and 1 mm. To make up this lack of data on ejecta it is thereby necessary to develop ground experiments. However there is no common test procedure and each facility has its own way to proceed, which makes difficult to compare results between the different facilities. To overcome this issue, this study suggests and establishes a possible test procedure applicable by all facilities, which will be then used for the creation of an international standard.
一般社団法人日本機械学会の論文
2011-07-16