ISI-SYS VIC-VOLUME Software

VIC-VOLUME

Vic-Volume Software

VIC Volume – The new software by Correlated Solutions is an exciting addition to the Vic image correlation product line. Vic-Volume utilises volumetric images from X‑Rays or CT-Scanners to measure internal deformation of a specimen under an applied load. Vic-Volume analyses the acquired images to create three-dimensional volumetric displacement and strain data of the specimen’s internal behaviour.

The resulting data is a full-field contour plot of the deformation data that can be viewed, animated, and extracted for FEA validation. The image to the left displays the internal strain (Ezz) of a rubber puck undergoing compression.

Digital Image Correlation (DIC) has found widespread popularity among scientists, researchers and engineers across the globe due to its accuracy, robustness, versatility, flexibility and overall ease of use. DIC is commonly used to measure 2D and 3D surface deformation and strain utilising white light machine vision digital cameras.

Correlated Solutions has offered turn-key 2D and 3D DIC systems since 1998, and continues to develop and add new advanced DIC products to our growing product line. More recently, Correlated Solutions has developed new software that utilises images from X-rays or CT scanners to measure volumetric deformation of an object under an applied load.

The scanner acquires images at specific depth coordinates, and then Vic-Volume analyses the image slices to construct a 3D volume made up of voxels. The individual voxels are the building blocks for the sub-volume, which contains the volumetric image correlation data.

A reinforced rubber matrix composite is mounted between two grips, and a set of reference images is acquired from a CT scanner at known increments. Each ‘slice’ of data is then analysed to compute a static volume measurement. After the specimen undergoes a tensile load, images are acquired again by the CT scanner at the same locations.

Digital Image Correlation algorithms are used to calculate the volumetric change or deformation at each individual voxel, which makes up the 3D volume.

Vic-Volume Software Features:

• Convenient AOI selection method through “Tweening’’
• Semi-automatic initial guess computation
• Optimised for accuracy, reduce non-linear optimisation to reduce bias and interpolation artefacts
• Highly Advanced memory management permits analysis of huge volumetric data sets
• Volumetric 3D displacements & strains