Engineering Properties of Lunar Soil Simulant JSC-1A
2009; American Society of Civil Engineers; Volume: 23; Issue: 1 Linguagem: Inglês
10.1061/(asce)0893-1321(2010)23
ISSN1943-5525
AutoresHaydar Arslan, Susan N. Batiste, Stein Sture,
Tópico(s)Soil Mechanics and Vehicle Dynamics
ResumoThis study was carried out to assess the tensile and shear strength in lunar soil, and to examine the variation as a function of density and confinement. Geotechnical engineering properties of the lunar soil simulant designated Johnson Space Center Number One-A lunar soil simulant (JSC-1A) have been investigated experimentally. To better understand these soil properties, a variety of conventional and unconventional experiments were conducted on JSC-1A to determine its grain-size distribution, cohesion, friction angle, dilatancy angle, tensile strength, and appropriate low strain elastic constants. These experiments were conducted on JSC-1A at a variety of densities prepared through tamping densification to quantify the response of the soil over a range of conditions. To simulate lunar conditions, the samples were prepared at medium to very high relative densities. Grain-size distribution, shear strength, tensile strength, dilatancy angles, and elasticity modulus of the JSC-1A were compared with lunar soil and other simulants.
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