The Influence of Facet Size and Filtering on the Results of Strain Fields’ Investigation Performed on Small Surfaces using Digital Image Correlation

摘要

The contribution deals with the investigation of the influence of facet size and smoothing on the results obtained by low-speed digital image correlation (DIC) system by strain analysis performed on specimen with a small hole loaded by tension loading. In conclusion the obtained results are verified by a numerical solution using finite element method.