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DOI | 10.1029/2020GL087393 |
Lagrangian-based Simulations of Hypervelocity Impact Experiments on Mars Regolith Proxy | |
Froment, M.1,2; Rougier, E.2; Larmat, C.2; Lei, Z.2; Euser, B.2; Kedar, S.3; Richardson, J. E.4; Kawamura, T.5; Lognonne, P.5 | |
2020-05-24 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | Most of the surface of Mars is covered with unconsolidated rocky material, known as regolith. High-fidelity models of the dynamics of impacts in such material are needed to help with the interpretation of seismic signals that are now recorded by SEIS, the seismometer of InSight. We developed a numerical model for impacts on regolith, using the novel Hybrid Optimization Software Suite (HOSS), which is a Lagrangian code mixing finite and discrete element formulations. We use data from hypervelocity impact experiments performed on pumice sand at the NASA Ames Vertical Gun Range to identify and calibrate key model parameters. The model provides insight into the plastic-elastic transition observed in the data and it also demonstrates that gravity plays a key role in the material response. Waveforms for receivers situated vertically below the impact point are correctly modeled, while more research is needed to explain the shallow receivers' signals. |
英文关键词 | Parametric study Lagrangian numerical model Shock wave granular media Mars regolith Impact |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551465400003 |
WOS关键词 | CRATERING RATE ; BEHAVIOR ; ELEMENT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/270407 |
专题 | 气候变化 |
作者单位 | 1.Ecole Normale Super Paris Saclay, Cachan, France; 2.Los Alamos Natl Lab, Earth & Environm Div, Los Alamos, NM 87545 USA; 3.CALTECH, Jet Prop Lab, Pasadena, CA USA; 4.Planetary Sci Inst, Tucson, AZ USA; 5.Univ Paris, Inst Phys Globe Paris, CNRS, Paris, France |
推荐引用方式 GB/T 7714 | Froment, M.,Rougier, E.,Larmat, C.,et al. Lagrangian-based Simulations of Hypervelocity Impact Experiments on Mars Regolith Proxy[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(13). |
APA | Froment, M..,Rougier, E..,Larmat, C..,Lei, Z..,Euser, B..,...&Lognonne, P..(2020).Lagrangian-based Simulations of Hypervelocity Impact Experiments on Mars Regolith Proxy.GEOPHYSICAL RESEARCH LETTERS,47(13). |
MLA | Froment, M.,et al."Lagrangian-based Simulations of Hypervelocity Impact Experiments on Mars Regolith Proxy".GEOPHYSICAL RESEARCH LETTERS 47.13(2020). |
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