Show simple item record

dc.contributor.authorEwoldt, Randy H.
dc.contributor.authorTourkine, Piotr
dc.contributor.authorHosoi, Anette E.
dc.contributor.authorMcKinley, Gareth H
dc.date.accessioned2013-04-26T19:07:28Z
dc.date.available2013-04-26T19:07:28Z
dc.date.issued2011-07
dc.date.submitted2011-01
dc.identifier.issn1070-6631
dc.identifier.issn1089-7666
dc.identifier.urihttp://hdl.handle.net/1721.1/78629
dc.description.abstractWe demonstrate that field-responsive magnetorheological fluids can be used for variable-strength controllable adhesion. The adhesive performance is measured experimentally in tensile tests (a.k.a. probe-tack experiments) in which the magnetic field is provided by a cylindrical permanent magnet. Increasing the magnetic field strength induces higher peak adhesive forces. We hypothesize that the adhesion mechanism arises from the shear resistance of a yield stress fluid in a thin gap. This hypothesis is supported by comparing the experimentally measured adhesive performance to the response predicted by a lubrication model for a non-Newtonian fluid with a field-dependent yield stress. The model predictions are in agreement with experimental data up to moderate field strengths. Above a critical magnetic field strength the model over-predicts the experimentally measured values indicating non-ideal conditions such as local fluid dewetting from the surface.en_US
dc.description.sponsorshipU.S. Army Research Laboratory (United States. Army Research Office Contract/Grant W911NF-08-C-0055)en_US
dc.language.isoen_US
dc.publisherAmerican Institute of Physics (AIP)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.3608277en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike 3.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en_US
dc.sourceMIT web domainen_US
dc.titleControllable adhesion using field-activated fluidsen_US
dc.typeArticleen_US
dc.identifier.citationEwoldt, Randy H., Piotr Tourkine, Gareth H. McKinley, and A. E. Hosoi. Controllable Adhesion Using Field-activated Fluids. Physics of Fluids 23(7): 073104, 2011.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Hatsopoulos Microfluids Laboratoryen_US
dc.contributor.mitauthorTourkine, Piotr
dc.contributor.mitauthorMcKinley, Gareth H.
dc.contributor.mitauthorHosoi, Anette E.
dc.relation.journalPhysics of Fluidsen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsEwoldt, Randy H.; Tourkine, Piotr; McKinley, Gareth H.; Hosoi, A. E.en
dc.identifier.orcidhttps://orcid.org/0000-0003-4940-7496
dc.identifier.orcidhttps://orcid.org/0000-0001-8323-2779
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record