Digital Image Correlation (DIC)

Forming limit curve (FLC) test for Digital Image Correlation (DIC)

Dantec Dynamics‘ Digital Image Correlation (DIC) product portfolio includes the EduDIC, FlexDIC, MulticamDIC, MSpeedDIC & HSpeedDIC systems. Each system has a different application purpose & configuration scope i.e. test complexity, data acquisition & feedback, measurement dimensions & size, and finally, test acquisition speed. Some of our DIC systems are oriented around specific measurement application solutions, for example, ThermechDIC

Overview of Dantec’s DIC portfolio

All Dantec Dynamics‘ Digital Image Correlation (DIC) products are operated via Istra4D, our premier software platform. Istra4D encompasses over 20 years‘ worth of application experience, technological advancements, and progressive development of measurement technology.

Istra4D consists of multiple modules, allowing users the ability to iteratively utilize all aspects, elements, and parameters of DIC within the measurement process. This dynamic structure gives users full flexibility in the application of Digital Image Correlation (DIC) measurements. In addition, the modular concept allows the possibility of expanding and upgrading the software and hardware features or solutions.

Istra4D Dantec's premier software platform
Istra4D Dantec’s premier software platform

Key Advantages of Digital Image Correlation (DIC)

Key Advantages as compared to other measurement techniques (ie. strain gauges) include:

  • It is a non-contact method. Meaning it requires no mechanical connection to the test object surface. Therefore there are no mechanical limitations or constraints.
  • Performed over the entire optically visible image, measurements yield full-field results. Instead of measuring discrete, (point-based) results, for example, one-axis directional displacements (ie. from LVDTs) or major strains (ie. from Strain Gauges), DIC can measure shape (contour), displacement, and multiple forms of strain.
  • A DIC system is versatile as it has no measurement speed limitations or optical constraints. It can measure whatever the camera “sees” in shape, size (from mm²² to m²), or motion (for Hz to MHz).
  • DIC resolves measurements within sub-pixel accuracy. Determining both in-plane (parallel to a surface) and out-of-plane (perpendicular to a surface) microstrains.

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