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

我们分析了阿波罗取回的样品，研究它们的3D颗粒特性和光谱特性。这些结果与Kaguya项目获得的遥感数据一起，被用来计算关于成熟度和镁含量的全球月球地图。我们还研究了月球表面条件对光谱特性的影响。此外，我们进行了颗粒尺度的数值模拟，使用所获得的颗粒特性，这有助于评估月壤的机械性能（容重，压缩性和剪切强度）从其成熟度指数。在此基础上，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