Estimation of the mechanical properties of lunar surface soil and its astrophysical and engineering applications

我们对阿波罗回收的样品进行了分析，以研究它们的3D颗粒特性和光谱特性。与卡古亚项目中获得的遥感数据一起，这些结果被用于计算关于成熟度和镁含量的月球全球地图。我们还研究了月球表面条件对光谱性质的影响。此外，我们还利用获得的颗粒特性进行了颗粒尺度的数值模拟，这有助于从成熟度指数来评价月壤的力学性质(容重、压缩性和抗剪强度)。基于这些结果，我们提出了日本宇宙航空研究开发机构未来的月球探测任务

We analyzed Apollo retrieved samples to study their 3D grain properties and spectrographic properties. Together with the remote sensing data obtained in the Kaguya project, the results were used to compute lunar global maps on maturity and magnesium contents. We also studied the effect of lunar surface condition on the spectrographic properties. Moreover we performed the grain-scale numerical simulations using the obtained grain properties, which helps to evaluate the mechanical properties of lunar soil (bulk density, compressibility and shear strength) from its maturity index. Based on these results, we proposed some future missions on lunar exploration by JAXA