WEKO3
アイテム
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Impact strength of porous ice-silicate mixture
https://jaxa.repo.nii.ac.jp/records/20664
https://jaxa.repo.nii.ac.jp/records/20664bf131531-3143-44e1-b5bf-d36906c04334
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Impact strength of porous ice-silicate mixture | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 氷 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ケイ酸塩 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 多孔質混合 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 降着過程 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 衝突分裂 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 質量分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 衝突強度 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 進化 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ice | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | silicate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | porous mixture | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | accretion process | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | impact disruption | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | mass distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | impact strength | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | evolution | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
その他のタイトル | ||||||
その他のタイトル | 多孔質氷・ケイ酸塩混合物の衝突強度 | |||||
著者 |
荒川, 政彦
× 荒川, 政彦× 富塚, 大輔× Arakawa, Masahiko× Tomizuka, Daisuke |
|||||
著者所属 | ||||||
北海道大学低温科学研究所 | ||||||
著者所属 | ||||||
北海道大学低温科学研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Low Temperature Science, Hokkaido University | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Low Temperature Science, Hokkaido University | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||
書誌情報 |
第36回月・惑星シンポジウム en : Proceedings of the 36th ISAS Lunar and Planetary Symposium p. 57-60, 発行日 2003-11 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Laboratory experiments on the impact disruption of ice-silicate mixture were conducted to clarify the accretion process of small icy bodies. Since the icy bodies are composed of ice and silicates with various porosities, the effect of porosity on the impact disruption of mixture was investigated. The mixture target was tested with the mass ratio of ice to silicate, 0.5 and with 5 different porosities (0, 12.5, 25, 32, 37 percent) at the impact velocities of 150 to 670 m/s. The silicate mass ratio was changed from 0 to 0.5 every 0.1 at the porosity of 12.5 percent on the constant impact velocity of about 300 m/s. As a result, the impact strength of the mixture was found to decrease with increasing porosity and the silicate mass ratio between 0.1 and 0.5 could enhance the strength of the icy target. The observed dependence of the impact strength on the porosity is completely opposite to the one found in pure ice. This difference could play an important role in ice-silicate fractionation during the accretion process: since ice rich bodies are easily broken as the porosity decreases in their evolution, the collisional growth could be prohibited. On the other hand, among the silicate rich bodies the collisional growth could be enhanced. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0046650015 |