Real time measurement of strain and deformation can be a valuable asset and is available through Vic-Gauge real time processing. The below is a real case study of how Vic-Gauge was used, as part of a solution generated by Correlated Solutions to measure real time strain.
Key Objectives of DIC Project
- –Measure real-time strains and deformations of flexible sheets
- –Real-time analog output for strain and displacement measurement to control test
Challenges
- For single camera, several key requirements
- Minimise the out-of-plane movement
- Maintain nominal planarity of specimen surface
- Keep sensor plane nominally parallel to specimen surface
Advantages of DIC Measurement System
- Full-field deformations throughout experiment
- Both quasi-static and dynamic loading measurable
Careful positioning and orientation of the DIC camera is crucial for most accurate measurements
- Correct orientation is readily achieved with carpenter’s square or laser pointer and a small mirror attached to specimen holder.
Minimize the error from any out-of-plane specimen movement by increasing distance from camera to the specimen
- Increased lighting intensity necessary for this situation
Key Points
- Test can be controlled using output analog signal from Vic-Gauge
- Large or small deformations are measurable
