A MODEL TO PREDICT THE SIZE OF 3D REGOLITH CLUMPS ON PLANETARY BODIES

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dc.contributor.advisorHartzell, Christine Men_US
dc.contributor.authorPatel, Anand Vijaykumaren_US
dc.contributor.departmentAerospace Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2020-07-14T05:30:57Z
dc.date.available2020-07-14T05:30:57Z
dc.date.issued2020en_US
dc.description.abstractPrior investigations of the behavior of regolith on the surface of planetary bodies has considered the motion and interactions of individual grains. Recent work has shown the significance of cohesion in understanding the behavior of planetary regolith, especially on small, airless bodies. Surficial regolith grains may detach from a planetary body due to a variety of phenomena, including aeolian effects, spacecraft operations, micrometeoroid bombardment and electrostatic lofting. It is well known in terrestrial powder handling that cohesive powders tend to form clumps. We present an analytical theory for the size of regolith clumps that are likely to form and be easier to detach from a surface than their constituent grains, assuming monodisperse, spherical grains. The model predictions are significant for our interpretation of the surface of asteroids, as well as understanding a variety of phenomena on planetary bodies and designing of sampling spacecraft.en_US
dc.identifierhttps://doi.org/10.13016/1y8k-fkt7
dc.identifier.urihttp://hdl.handle.net/1903/26275
dc.language.isoenen_US
dc.subject.pqcontrolledAerospace engineeringen_US
dc.subject.pquncontrolledAsteroiden_US
dc.subject.pquncontrolledClumpen_US
dc.subject.pquncontrolledDusten_US
dc.subject.pquncontrolledPlaneten_US
dc.subject.pquncontrolledRegolithen_US
dc.subject.pquncontrolledSpaceen_US
dc.titleA MODEL TO PREDICT THE SIZE OF 3D REGOLITH CLUMPS ON PLANETARY BODIESen_US
dc.typeThesisen_US

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