dc.contributor.author | Ewoldt, Randy H. | |
dc.contributor.author | Tourkine, Piotr | |
dc.contributor.author | Hosoi, Anette E. | |
dc.contributor.author | McKinley, Gareth H | |
dc.date.accessioned | 2013-04-26T19:07:28Z | |
dc.date.available | 2013-04-26T19:07:28Z | |
dc.date.issued | 2011-07 | |
dc.date.submitted | 2011-01 | |
dc.identifier.issn | 1070-6631 | |
dc.identifier.issn | 1089-7666 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/78629 | |
dc.description.abstract | We 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.sponsorship | U.S. Army Research Laboratory (United States. Army Research Office Contract/Grant W911NF-08-C-0055) | en_US |
dc.language.iso | en_US | |
dc.publisher | American Institute of Physics (AIP) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1063/1.3608277 | en_US |
dc.rights | Creative Commons Attribution-Noncommercial-Share Alike 3.0 | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/ | en_US |
dc.source | MIT web domain | en_US |
dc.title | Controllable adhesion using field-activated fluids | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Ewoldt, 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.department | Massachusetts Institute of Technology. Department of Mechanical Engineering | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Hatsopoulos Microfluids Laboratory | en_US |
dc.contributor.mitauthor | Tourkine, Piotr | |
dc.contributor.mitauthor | McKinley, Gareth H. | |
dc.contributor.mitauthor | Hosoi, Anette E. | |
dc.relation.journal | Physics of Fluids | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Ewoldt, Randy H.; Tourkine, Piotr; McKinley, Gareth H.; Hosoi, A. E. | en |
dc.identifier.orcid | https://orcid.org/0000-0003-4940-7496 | |
dc.identifier.orcid | https://orcid.org/0000-0001-8323-2779 | |
mit.license | OPEN_ACCESS_POLICY | en_US |
mit.metadata.status | Complete | |