dc.date.accessioned | 2016-01-13T15:47:31Z | |
dc.date.available | 2016-01-13T15:47:31Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://hdl.handle.net/10852/48571 | |
dc.description.abstract | Friction is scientifically interesting and technologically important. We can characterize friction well, but even the friction force between macroscopic surfaces of known chemistry and topography under known loading conditions cannot yet be predicted from the bottom up. A major obstacle to predicting frictional properties is to link the macroscopic observations to the behavior of the myriad microscopic connections that make up the interaction.
The onset of frictional sliding occurs through the breaking of the contacts that were keeping the interface stuck. Recent experiments performed with high spatial and temporal resolution show that rupture nucleates at weak or highly stressed points and propagates outwards from there. Understanding how the rupture travels is an important step towards understanding friction. This thesis presents simulations and theory aimed at improving our understanding of this onset of sliding in dry friction systems. The principal model combines 2D elasticity with an asperity level description of the interface and reproduces and explains many of the experimental results. Analytical calculations provide additional insights. | |
dc.language.iso | en | en_US |
dc.relation.haspart | Paper I: Slow slip and the transition from fast to slow fronts in the rupture of frictional interfaces. Jørgen Kjoshagen Trømborg, Henrik Andersen Sveinsson, Julien Scheibert, Kjetil Thøgersen, David Skålid Amundsen and Anders Malthe-Sørenssen. Proceedings of the National Academy of Sciences of the United States of America, 111, 24 (2014). The paper is not available in DUO due to publisher restrictions. The published version is available at: http://dx.doi.org/10.1073/pnas.1321752111 | |
dc.relation.haspart | Paper II: History-dependent friction and slow slip from time-dependent microscopic junction laws studied in a statistical framework. Kjetil Thøgersen, Jørgen Kjoshagen Trømborg, Henrik Andersen Sveinsson, Anders Malthe-Sørenssen and Julien Scheibert. Physical Review E, 89, 052401 (2014). The paper is available in DUO: http://urn.nb.no/URN:NBN:no-44179 | |
dc.relation.haspart | Paper III: Speed of fast and slow rupture fronts along frictional interfaces. Jørgen Kjoshagen Trømborg, Henrik Andersen Sveinsson, Kjetil Thøgersen, Julien Scheibert and Anders Malthe-Sørenssen. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, 92, 012408 (2015). The paper is available in DUO: http://urn.nb.no/URN:NBN:no-52443 | |
dc.relation.haspart | Paper IV: Steady-state propagation speed of rupture fronts along 1D frictional interfaces. David Skålid Amundsen, Kjetil Thøgersen, Jørgen Kjoshagen Trømborg, Eytan Katzav, Anders Malthe-Sørenssen and Julien Scheibert. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, 92, 032406 (2015). Submitted version. The paper is available in DUO: http://urn.nb.no/URN:NBN:no-52444 | |
dc.relation.uri | http://dx.doi.org/10.1073/pnas.1321752111 | |
dc.relation.uri | http://urn.nb.no/URN:NBN:no-44179 | |
dc.relation.uri | http://urn.nb.no/URN:NBN:no-52443 | |
dc.relation.uri | http://urn.nb.no/URN:NBN:no-52444 | |
dc.title | Modelling the onset of frictional sliding: Rupture fronts, slow slip, and time-dependent junction laws | en_US |
dc.type | Doctoral thesis | en_US |
dc.creator.author | Trømborg, Jørgen Kjoshagen | |
dc.identifier.urn | URN:NBN:no-52441 | |
dc.type.document | Doktoravhandling | en_US |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/48571/1/PhD-Tromborg-DUO.pdf | |