2021•Acta Technica JaurinensisOpen access

Speckle pattern optimization for DIC technologies

Szabolcs Szalai, Gábor Dogossy

Abstract

This paper contains the relation between speckle pattern and Digital Image Correlation (DIC). The most important advance in experimental mechanics has been DIC since the strain gage. The deformation (strain) of an object can be visualized by DIC. Among all scientific fields, the DIC Technologies have seen a dynamic increase. The relationship between the paint and the sample - as the patterns mediate the deformation to the cameras - has been the most important technological issue. In this article the method developed for the detection of isolated particles in alloys is used to characterize the spots, which help the best speckle pattern has determined.

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Available abstract

Key concepts: Speckle pattern, Digital image correlation, Deformation (meteorology), Sample (material), Electronic speckle pattern interferometry, Digital image, Materials science, Computer science