Digital Image Correlation (DIC)
2D DIC, 3D DIC
Test types:
Strain mapping
FIBEr
Model: VIC 2D/3D Stereo System Package
Manufacturer: isi-sys GmbH
About
DIC is an optical technique to measure shape, full field deformation and strain of the surfaces of a specimen. The set-up consists of a single camera for planar deformations (2D) and two cameras in stereovision for non-planar deformations (3D). It can be used for a range of specimen sizes by using the right calibration target. A speckle pattern needs to be applied to the specimen to automatically track the displacement and deformations. This set-up is mostly used in combination with a mechanical testing set-up to measure the full field deformation of the sample during the test.
Gallery
Specifications
Calibration targets | Different sizes with spacing from 0.45 mm to 10 mm for a field of view from 4 x 4 mm up to 100 x 100 mm |
In-plane resolution | 10-5 x FOV |
Out-plane resolution | 2 x 10-5 x FOV |
Strain resolution | ~30 μstrain |
Strain range | 0.005% to >2000% |
Software | VIC-2D and VIC-3D software packages |
Synchronization with other setups | DAQ and trigger device |
Year of acquisition | 2016 |
Cameras | Flir Grasshopper3 GS3-U3-51S5M-C (5 Mpx, 75 Hz @ full resolution) AVT Manta G-917 (9.2 Mpx, 10.1 Hz @ full resolution) |
Lenses | Schneider lens Xenoplan 1.4/23 (large FOV) Kowa lens LM50SC 1” 50/F2.0 (small FOV) |
Extensions tubes | to optimize zoom and focal distance |
Application Examples
In combination with the TA Electroforce 3330, a human iliotibial tract was dynamically characterized. A speckle pattern was applied using methylene blue as background and white paint applied with an airbrush. Images were synchronously captured during uniaxial stretching and the strain and displacement field extracted.
Compatible With
Makes us of one of these systems:
Can be used in combination with:
Publications
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