Materials Science & Testing

The reliable measurement of displacement and strain in materials testing is essential since it characterizes the true mechanical properties of a material. Digital Image Correlation (DIC) is one of the most accurate & versatile, full-field measurement techniques for experimental solid mechanic testing. The technology utilizes cameras of any resolution and frame rate to accurately measure quasi-static, dynamic, and fatigue testing events for literally any materials science & testing application.

Whether measuring strain for; axial, biaxial, fracture, fatigue, pressure, thermal mechanic, compression, bending, shearing, and Forming Limit Curve (FLC) testing, DIC can always be used provided the test surface is visible to at least one camera. Large-scale testing of multiple m2 can be completed using a multicamera setup of up to 16 cameras, alternatively, micro-scale testing of specimens down to mm2 in size can also be measured using a stereoscopic microscope or telecentric (macro zoom) lens configuration.

Materials Science & Testing
Istra4D 2D-overlay visualization of the Lagrangian Principle Strain 1 (Major Strain) in %. The Principle Strain reaches a maximum of 37-38 % in A1-A4 . As expected, the Principle Strain is near 0 % at the center of the specimen.

Application Notes

High-resolution optical measurements of miniature metal samples for microstructural engineering applications with FlexDIC

FlexDIC system with a telecentric zoom lens being used to measure a microscopic additive tensile sample. Photo: Courtesy of the National University of Singapore (NUS)
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Optical measurements of adaptive, additive samples for smart material applications with FlexDIC

The 3-camera FlexDIC system being used to measure an additive tensile sample, before heat application. Photo: Courtesy of Universiti Teknologi Petronas (UTP)
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Compression, Bending, Shearing and Forming Limit Curve (FLC) Testing – DIC – Video

In this video, we present an overview of Compression, Bending, Shearing and Forming Limit Curve (FLC) Testing.
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Fracture, Fatigue, Pressure & Thermal Mechanic Testing – DIC – Video

In this video, we present an overview of Fracture, Fatigue, Pressure & Thermal Mechanic Testing Applications, using the EduDIC system.
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Axial & Biaxial Material Testing Applications – DIC – Video

This presentation is an overview of Axial & Biaxial Material Testing Applications, using the EduDIC, system.
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Application Scripting Module – Infrared (IR) Camera Analysis – Video

Here is an example of the Infrared (IR) applications modules for the comparison and analysis of temperature and DIC measurements (displacement & strain)
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Application Scripting Module – Fracture Mechanics – Video

Here is an example of the fracture mechanics applications modules for the analysis of crack propagation.
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True Stress (Double-sided) Measurement – Video

The correct measurement of stress and strain for any material is essential, as it reflects the true (real) nature of a materials’ mechanical properties. In this application video, we show ho[…]
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Application Scripting Module – Point Tracking – Video

Here is an example of the point tracking applications modules for the measurement of relative distances, displacements, angles, velocities and accelerations between two points.
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Application Scripting Module – Materials Testing – Video

Here is an example of the material testing applications module for the measurement of the Youngs Modulus, Poisson Ratio, Strain Rate and Plastic Strain Ratio.
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True Stress (Double-sided) Measurement

The correct measurement of stress and strain for any material is essential, as it reflects the true (real) nature of a materials’ mechanical properties.
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Error Estimations of 3D Digital Image Correlation Measurements

Digital image correlation as a tool for surface deformation measurements has found widespread use and acceptance in the field of experimental mechanics. The method is known to reconstruct di[…]
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Residual Stress Measurements at Macro- and Micro-Scales Using DIC

The measurement of residual stresses is a very active research area. The most commonly used technique currently is the crack compliance, or slitting, method. This involves the introduction o[…]
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Materials and Structural Testing with state of the art Imaging Systems – Turn Measurements into Knowledge

Quality Assurance and inspection demands are massively increasing requiring not only more frequent materials and infrastructure tests but also any inspection reports gener­ated from such tes[…]
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Full-Field Strain Measurement for Tensioned Fabrics in Art & Architecture

Dantec Dynamics’ full field strain measurement systems have been used by The Courtauld Institute of Art as part of a research project into fabrics in tension. This work is used for the conse[…]
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Dantec’s Digital Image Correlation (DIC) Multi-Camera Metrology

Dantec Dynamics provides cost-efficient and innovative solutions for Material Testing and Structural Analysis of advanced materials and complex components. The multi-camera DIC solution pro[…]
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Material and Structural Testing with DIC

The need for testing complex material and structures with often anisotropic material behaviour and the economic demands to increase the work efficiency, forces the traditional testing away f[…]
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Digital Image Correlation (DIC) a complementary Method for Strain Gauge Measurements

Measuring the behavior of complex compo­nents with often anisotropic material behavior, drives the need for full-field optical measure­ment methods. It is also increasingly the case that eco[…]
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Basics of 3D Digital Image Correlation (DIC)

In classical image correlation the deformation of an object is determined by observation with a CCD camera. Then a digital image correlation process determines the shift and/or rotation and […]
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Experimental Finite Element Method (FEM) validation using Digital Image Correlation (DIC)

A variety of mechanical engineering disciplines, such as aeronautical, biomechanical, and automotive industries rely on Finite Element Method (FEM) in the design, development and testing of […]
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