A space–time approach in digital image correlation: Movie-DIC
dc.contributor.author
hal.structure.identifier | BESNARD, Gilles
|
dc.contributor.author
hal.structure.identifier | GUERARD, Sandra
|
dc.contributor.author
hal.structure.identifier | ROUX, Stéphane
|
dc.contributor.author
hal.structure.identifier | HILD, François
|
dc.date.accessioned | 2013 |
dc.date.available | 2013 |
dc.date.issued | 2011 |
dc.date.submitted | 2013 |
dc.identifier.issn | 0143-8166 |
dc.identifier.uri | http://hdl.handle.net/10985/7334 |
dc.description.abstract | A new method is proposed to estimate arbitrary velocity fields from a time series of images acquired by a single camera. This approach, here focused on a single spatial plus a time dimension, is specialized to the decomposition of the velocity field over rectangular shaped (finite-element) bilinear shape functions. It is therefore assumed that the velocity field is essentially aligned along one direction. The use of a time sequence over which the velocity is assumed to have a smooth temporal change allows one to use elements whose spatial extension is much smaller than in traditional digital image correlation based on successive image pairs. This method is first qualified by using synthetic numerical test cases, and then applied to a dynamic tensile test performed on a tantalum specimen. Improvements with respect to classical digital image correlation techniques are observed in terms of spatial resolution. |
dc.publisher | Elsevier |
dc.rights | Post-print |
dc.subject | Digital image correlation |
dc.subject | Displacement field |
dc.subject | Strain field |
dc.subject | Strain rate field |
dc.subject | Velocity field |
dc.title | A space–time approach in digital image correlation: Movie-DIC |
dc.identifier.doi | 10.1016/j.optlaseng.2010.08.012 |
dc.typdoc | Article dans une revue avec comité de lecture |
dc.localisation | Centre de Paris |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des matériaux |
dc.subject.hal | Sciences de l'ingénieur: Optique / photonique |
dc.subject.hal | Sciences de l'ingénieur: Traitement du signal et de l'image |
ensam.audience | Non spécifiée |
ensam.page | 71-81 |
ensam.journal | Optics and Lasers in Engineering |
ensam.volume | 49 |
ensam.issue | 1 |
hal.description.error | The argument 'doi' (value = '10.1016/j.optlaseng.2010.08.012') included in the request is allready on HAL |
hal.status | unsent |