Digital Image Mechanical Identification (DIMI)
| dc.creator | Hild, François | |
| dc.creator | Roux, Stéphane | |
| dc.date | 2007-12-23 | |
| dc.date.accessioned | 2026-07-07T08:51:10Z | |
| dc.date.available | 2026-07-07T08:51:10Z | |
| dc.description | A continuous pathway from digital images acquired during a mechanical test to quantitative identification of a constitutive law is presented herein based on displacement field analysis. From images, displacement fields are directly estimated within a finite element framework. From the latter, the application of the equilibrium gap method provides the means for rigidity field evaluation. In the present case, a reconditioned formulation is proposed for a better stability. Last, postulating a specific form of a damage law, a linear system is formed that gives a direct access to the (non-linear) damage growth law in one step. The two last procedures are presented, validated on an artificial case, and applied to the case of a biaxial tension of a composite sample driven up to failure. A quantitative estimate of the quality of the determination is proposed, and in the last application, it is shown that no more than 7% of the displacement field fluctuations are not accounted for by the determined damage law. | |
| dc.description | to appear Experimental Mechanics (2008) | |
| dc.identifier | https://arxiv.org/abs/0712.3918 | |
| dc.identifier | http://arxiv.org/abs/0712.3918 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/144845 | |
| dc.subject | Classical Physics | |
| dc.title | Digital Image Mechanical Identification (DIMI) | |
| dc.type | text |