Measuring Strain Distribution Around Inclusions and Matrix Interface Using Global Digital Image Correlation
Advancements in Optical Methods, Digital Image Correlation & Micro-and Nanomechanics, Volume 4 Conference Proceedings of the Society for Experimental Mechanics Series（2023）
Abstract
A method for evaluating displacement and strain distributions around inclusion and matrix interface is studied in this chapter. Global digital image correlation (global DIC) is used for this method. Global DIC can obtain the displacement in inclusions and matrix parts separately. Strains are also computed using a mesh. The results show that strain distributions of rapid change around interface can be obtained by global DIC. Then, by comparing the measurement results of local DIC and global DIC, it is found that global DIC has the validity to measure strain around the interface.
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