How accurate is digital image correlation?

The accuracy of DIC strain measurements tends to be around 10% below 0.3% deformation (3,000 µe), with a higher accuracy close to 1% above 3% deformation (30,000 µe). The measurement of deformation by DIC has been successfully tested with a deformation greater than 50%, and some applications achieve 100% deformation.

How accurate is digital image correlation?

The accuracy of DIC strain measurements tends to be around 10% below 0.3% deformation (3,000 µe), with a higher accuracy close to 1% above 3% deformation (30,000 µe). The measurement of deformation by DIC has been successfully tested with a deformation greater than 50%, and some applications achieve 100% deformation. This study shows that the DIC can measure small quantities (. Pan B, Xie HM, Guo ZQ, Hua T (200) Full-field deformation measurement using a Savitzky-Golay two-dimensional digital differentiator in the correlation of digital images.

Edward Brown
Edward Brown

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