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Failures in sand in reduced gravity environments

Marshall, Jason P. and Hurley, Ryan C. and Arthur, Dan and Vlahinic, Ivan and Senatore, Carmine and Iagnemma, Karl and Trease, Brian and Andrade, José E. (2018) Failures in sand in reduced gravity environments. Journal of the Mechanics and Physics of Solids, 113 . pp. 1-12. ISSN 0022-5096. doi:10.1016/j.jmps.2018.01.005.

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The strength of granular materials, specifically sand is important for understanding physical phenomena on other celestial bodies. However, relatively few experiments have been conducted to determine the dependence of strength properties on gravity. In this work, we experimentally investigated relative values of strength (the peak friction angle, the residual friction angle, the angle of repose, and the peak dilatancy angle) in Earth, Martian, Lunar, and near-zero gravity. The various angles were captured in a classical passive Earth pressure experiment conducted on board a reduced gravity flight and analyzed using digital image correlation. The data showed essentially no dependence of the peak friction angle on gravity, a decrease in the residual friction angle between Martian and Lunar gravity, no dependence of the angle of repose on gravity, and an increase in the dilation angle between Martian and Lunar gravity. Additionally, multiple flow surfaces were seen in near-zero gravity. These results highlight the importance of understanding strength and deformation mechanisms of granular materials at different levels of gravity.

Item Type:Article
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Marshall, Jason P.0000-0001-6208-1801
Additional Information:© 2018 Elsevier Ltd. Received 1 September 2017, Revised 19 December 2017, Accepted 8 January 2018, Available online 12 January 2018. This research was supported in part by the Keck Institute for Space Studies (KISS) at the California Institute of Technology under the program “x-Terramechanics - Integrated Simulation of Planetary Surface Missions”. This support is gratefully acknowledged.
Group:Keck Institute for Space Studies
Funding AgencyGrant Number
Keck Institute for Space Studies (KISS)UNSPECIFIED
Subject Keywords:Granular material; Shear bands; Failure; Reduced gravity
Record Number:CaltechAUTHORS:20180530-103229436
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Official Citation:Jason P. Marshall, Ryan C. Hurley, Dan Arthur, Ivan Vlahinic, Carmine Senatore, Karl Iagnemma, Brian Trease, José E. Andrade, Failures in sand in reduced gravity environments, Journal of the Mechanics and Physics of Solids, Volume 113, 2018, Pages 1-12, ISSN 0022-5096, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86707
Deposited By: Tony Diaz
Deposited On:30 May 2018 17:42
Last Modified:15 Nov 2021 20:41

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