DIC MEASUREMENTS – A COMPARISON OF DIFFERENT METHODS TO EVALUATE THREE-DIMENSIONAL DEFORMATION STATES |
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| Bertram Stier, Stefanie Reese |
- Abstract:
- More and more optical 3d deformation measurement systems are used to analyse material and component behaviour. Obvious advantages in the analyses - especially at high strain deformation states, where nonlinearity caused by material behaviour and kinematics, anisotropy or inhomogeneity plays a role - are pushing these methods. Nevertheless DIC-based systems only serve to observe surfaces of specimens or components. For the determination of a full 3d deformation state, there is a need of information about a material point behind the observed surface. Due to this fact it is only possible to get either deformation states relative to a local coordinate system of a surface element, or to determine the full 3d deformation state relative to a global coordinate system by making assumptions in thickness direction. The aim of this paper is to give a general view of how deformation states can be evaluated based on raw point coordinates.
- Download:
- IMEKO-YSESM-2011-ea39.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC15
- Event name:
- TC15 Youth Symposium 2011
- Title:
10th Youth Symposium on Experimental Solid Mechanics (TC15)
- Place:
- Chemnitz, GERMANY
- Time:
- 25 May 2011 - 28 May 2011