Digital image correlation (DIC) is a full-field, non-contact 3D optical technique for measuring contour, deformation, vibration and deformation in almost any material. The technique can be used with many tests, including traction, torsion, bending and combined load tests for static and dynamic applications. Digital image correlation is becoming a reliable instrument for measuring deformation and deformation in aerospace testing. A test sample is painted with dots, cameras record how the dots move when loads are applied, and the software correlates these images to produce full-field deformation or deformation data.
How is digital image correlation used?
Digital image correlation (DIC) is a full-field, non-contact 3D optical technique for measuring contour, deformation, vibration and deformation in almost any material. The technique can be used with many tests, including traction, torsion, bending and combined load tests for static and dynamic applications.
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How does digital image correlation work?
The DIC works by comparing digital photographs of a component or a test part at different stages of deformation. By tracking blocks of pixels, the system can measure surface displacement and create full-field 2D and 3D deformation vector fields and deformation maps.
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