CAD-based Displacement Measurements with Stereo-DIC: Principle and First Validations
A new displacement measurement technique is proposed in a stereovision setup, which uses the object of interest as the support of the correlation process. This procedure leads to a global approach to stereocorrelation. The method is presented in its general formulation and is then particularized to...
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| Veröffentlicht in: | Experimental mechanics 2015-11, Vol.55 (9), p.1657-1668 |
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| container_title | Experimental mechanics |
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| creator | Dufour, John-Eric Beaubier, Benoît Hild, François Roux, Stéphane |
| description | A new displacement measurement technique is proposed in a stereovision setup, which uses the object of interest as the support of the correlation process. This procedure leads to a global approach to stereocorrelation. The method is presented in its general formulation and is then particularized to the case of non uniform rational B-splines (NURBS). The displacement field is directly measured as a 3D field expressed in a NURBS basis consistent with the existing geometric model. The kinematic measurements are validated against prescribed displacements of a machined Bézier patch. The feasibility in an industrial context is shown with the analysis of 3D displacement fields of a 2- m
2
automotive roof panel during a welding operation. |
| doi_str_mv | 10.1007/s11340-015-0065-6 |
| format | Article |
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| subjects | Biomedical Engineering and Bioengineering Characterization and Evaluation of Materials Control Dynamical Systems Engineering Lasers Mechanics Mechanics of materials Optical Devices Optics Photonics Physics Solid Mechanics Vibration |
| title | CAD-based Displacement Measurements with Stereo-DIC: Principle and First Validations |
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