Results 221 to 230 of about 2,310,283 (266)
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Penetration resistance of lunar soils
Journal of Terramechanics, 1971Abstract Penetration resistance, in terms of the slope G of the stress penetration curve, has been correlated with density for a basaltic lunar soil simulant. The values were measured with the standard WES 30° cone penetrometer. This lunar soil simulant has been found to possess the same penetration resistance characteristics as the Apollo ...
W.N. Houston, L.I. Namiq
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Development of Soil on the Lunar Surface
SEPM Journal of Sedimentary Research, 1972Discussion of the dynamic processes involved in the evolution of the lunar soil. Size, shape, and modal analyses of soil returned by Apollo 11, 12, 14, and 15, and Luna 16 indicate that the two most important dynamic processes resulting from meteorite impact are vitrification and comminution of the detrital material.
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Bearing strength of lunar soil
The Moon, 1971Bearing load vs penetration curves have been measured on a 1.3 g sample of lunar soil from the scoop of the Surveyor 3 soil mechanics surface sampler, using a circular indentor 2 mm in diameter. Measurements were made in an Earth laboratory, in air.
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Measurement and calibration of DEM parameters of lunar soil simulant
Acta Astronautica, 2021Jianzhong Zhu +5 more
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DEM modelling of cone penetration tests in lunar soil
Granular Matter, 2021M. Jiang, T. Zhao, Xingxing Wang
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Magnetic separation of lunar soils
IEEE Transactions on Magnetics, 1991The authors report measurements of the distribution by magnetic susceptibility of anorthite, ilmenite, pyroxene, and metallic iron separated from the minus 1-mm size fraction of five lunar samples using a Frantz isodynamic separator. Low-iron content, pure anorthite was separated from the feebly paramagnetic fractions of an immature anorthistic ...
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Lunar Soil Sampling and Testing
1962The limited real data available on the lunar environment is presented and several selected references are listed. Soil is usually tested for the properties that are expected to change and differ from one environment to another, whereas the properties that are more or less in equilibrium in any terrestrial environment are not tested.
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A systematic calibration and validating method for lunar soil DEM model
, 2021Tianxi Liu +4 more
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