Abstract
AbstractThe Stability of the superstructure of any building and its response against vibrations are completely dependent upon foundation systems adopted. The analysis and design of a foundation system with respect to ground motion and vibration relies on the dynamic properties of the soil. Therefore, the characterization of dynamic soil properties like shear modulus, damping ratio, and Poisson’s ratio is essential for the safe design of foundation systems. Dynamic characterization of geotechnical properties of lunar soil is essential for the design of rovers and other Space exploration vehicles apart from the in situ resource utilization (ISRU) on the Moon. The futuristic Moon colonization also needs to build different lunar infrastructure facilities on the Moon. The foundation systems of these lunar structures are expected to encounter various types of vibrations due to moonquakes. Therefore, it is imperative to evaluate the dynamic properties of the lunar soil against the moonquake induced vibrations. This paper explains the characterization of the dynamic properties of the lunar soil simulant (LSS-ISAC-1). The cyclic triaxial tests and bender element tests were performed to determine the shear modulus, damping ratio, and Poisson’s ratio of the lunar soil simulantKeywordsLunar soil simulantLunar structuresMoonquakeShear modulusDamping ratio
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