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Particle Grading Effect on Mechanical Properties of Lunar Soil Simulant FJS-1
| Content Provider | Semantic Scholar |
|---|---|
| Author | Matsushima, Takashi Ishikawa, Tomonori |
| Copyright Year | 2015 |
| Abstract | This paper presents some mechanical test results of a lunar soil simulant, FJS1, to clarify the effect of grain size distribution on bulk mechanical properties of lunar surface soil under low confining pressure. The samples used are the original FJS-1 imitating an average grading of lunar soil, two sieved FJS-1 samples, whose grain sizes are less than 0.1mm and from 0.1 to 0.4mm, respectively. First, the maximum and minimum void ratio tests of those samples revealed both pore-filling effect and inter-granular adhesion effect of fines. Next, according to small-scale triaxial compression tests and self-standing height tests, the internal friction angle ranges from 30 to 50 degrees, and the bulk cohesion is about 0-175(Pa) depending on the void ratio, which are consistent with the previous estimation of typical lunar soil. Finally, based on the experimental results, we propose a simple micromechanics model that describes the experimental results in a consistent manner. |
| Starting Page | 60 |
| Ending Page | 68 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1061/9780784479179.008 |
| Alternate Webpage(s) | http://granular.kz.tsukuba.ac.jp/pdfs/EarthSpace2014_tmatsu_i_head.pdf |
| Alternate Webpage(s) | https://doi.org/10.1061/9780784479179.008 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
