Chapter
Apr 26, 2012
Effect of Grain Size Distribution on Mechanical Properties of Lunar Soil
Authors: T. Ueda, T. Matsushima [email protected], and Y. YamadaAuthor Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
Previous researches have revealed that the lunar surface soil (regolith) has a very wide range of grain size distribution. The mechanical properties of such a granular material may be quite different from those of poorly-graded granular materials. This paper proposes a method to reproduce the mechanical properties of a well-graded granular material by replacing it with a binary mixture of different particle sizes and evaluates systematically the effects of grain size distribution. A series of maximum and minimum density tests and direct shear tests with a lunar soil simulant, FJS-1, proved that the model effectively simulates the void ratio range and the shear strength of original material.
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Published In
Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Pages: 49 - 56
Copyright
© 2010 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Affiliations
T. Ueda
Department of Engineering Mechanics and Energy, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8573, JAPAN
Department of Engineering Mechanics and Energy, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8573, JAPAN;. E-mail: [email protected]
Y. Yamada
Department of Engineering Mechanics and Energy, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8573, JAPAN
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