| タイトル | Planetary cratering mechanics |
| 本文（外部サイト） | http://hdl.handle.net/2060/19920009568 |
| 著者（英） | Okeefe, John D.; Ahrens, Thomas J. |
| 著者所属（英） | California Inst. of Tech. |
| 発行日 | 1992-02-01 |
| 言語 | eng |
| 内容記述 | To obtain a quantitative understanding of the cratering process over a broad range of conditions, we have numerically computed the evolution of impact induced flow fields and calculated the time histories of the major measures of crater geometry (e.g., depth diameter, lip height ...) for variations in planetary gravity (0 to 10 exp 9 cm/sq seconds), material strength (0 to 140 kbar), thermodynamic properties, and impactor radius (0.05 to 5000 km). These results were fit into the framework of the scaling relations of Holsapple and Schmidt (1987). We describe the impact process in terms of four regimes: (1) penetration; (2) inertial; (3) terminal; and (4) relaxation. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 92N18810 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/128657 |
