Effect of Wetting and Contamination of Granular Beds During Sphere Impact

Handle URI:
http://hdl.handle.net/10754/279152
Title:
Effect of Wetting and Contamination of Granular Beds During Sphere Impact
Authors:
Kouraytem, Nadia
Abstract:
This thesis presents results from an experimental study of the impact of dense solid spheres onto granular beds. The overall aim is to further our understanding of the dynamical response of granular materials to impact. In order to do this, we will study both the initial penetration stages and peak acceleration exerted on the sphere by using high-speed imaging. Another critical part is to measure the penetration depth of the sphere and calculate the corresponding depth-averaged stopping force. Both of these main focal points will be assessed for not only dry, but wet and “contaminated” grains, whereby the granular bed will be comprised of two distinct size ranges of base grains. In doing so, we aim to broadly determine whether contaminated grains or wet grains are more effective at increasing the tensile strength of granular materials.
Advisors:
Thoroddsen, Sigurdur T ( 0000-0001-6997-4311 )
Committee Member:
Claudel, Christian G. ( 0000-0003-0702-6548 ) ; Marston, Jeremy
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Program:
Mechanical Engineering
Issue Date:
Mar-2013
Type:
Thesis
Appears in Collections:
Theses; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.advisorThoroddsen, Sigurdur Ten
dc.contributor.authorKouraytem, Nadiaen
dc.date.accessioned2013-04-07T15:46:59Z-
dc.date.available2013-04-07T15:46:59Z-
dc.date.issued2013-03en
dc.identifier.urihttp://hdl.handle.net/10754/279152en
dc.description.abstractThis thesis presents results from an experimental study of the impact of dense solid spheres onto granular beds. The overall aim is to further our understanding of the dynamical response of granular materials to impact. In order to do this, we will study both the initial penetration stages and peak acceleration exerted on the sphere by using high-speed imaging. Another critical part is to measure the penetration depth of the sphere and calculate the corresponding depth-averaged stopping force. Both of these main focal points will be assessed for not only dry, but wet and “contaminated” grains, whereby the granular bed will be comprised of two distinct size ranges of base grains. In doing so, we aim to broadly determine whether contaminated grains or wet grains are more effective at increasing the tensile strength of granular materials.en
dc.language.isoenen
dc.subjectGranularen
dc.subjectImpacten
dc.subjectWettingen
dc.subjectPenetrationen
dc.titleEffect of Wetting and Contamination of Granular Beds During Sphere Impacten
dc.typeThesisen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberClaudel, Christian G.en
dc.contributor.committeememberMarston, Jeremyen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.nameMaster of Scienceen
dc.person.id118451en
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