| Popis: |
The microgravity environment induced by near-earth orbits of spacecraft, along with the hard-vacuum, of space through the use of a wake shield, provide unique experimental opportunities for testing theories related to the mechanical behavior of terrestrial materials that are essentially granular without any physical or chemical cementation between the grains. Such materials may include cohesion less soils, industrial powders, pharmaceutical products, industrial or agricultural grains, crushed coal, etc. This paper will focus on such issues and will include a microgravity experiment currently planned to study the behavior of dry and saturated sands at very low effective stress levels. This experiment is scheduled to be performed during a Space Shuttle-MIR mission in 1996. |
