journal article·2020-11-01

Some Practical Aspects of Digital Image Correlation Technique to Evaluate Anisotropy Coefficient and Its Comparison with Traditional Method

N. Hedayati, R. Hashemi

Journal of Testing and Evaluation· Volume 48· Issue 6
Publisher page

Abstract

Abstract Digital Image Correlation (DIC) is a robust method that is used to evaluate full-field displacements. In this technique, images taken from the specimen are compared before and after deformation; this method provides an accurate displacement field as well as strain values. The objective of the present work is to examine the DIC method using the traditional method of calculating the plastic anisotropy coefficients. In this research, the DIC method has been applied on one side of the specimen, and the conventional circle grid analysis technique is performed on the other side. Results showed that the fully automated 2-D DIC method in MATLAB (MathWorks, Natick, MA) was verified and that it could replace the traditional technique of circle grid analysis, which is time consuming and incurs a lot of human errors.
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Research context

OpenAlex topics: Optical measurement and interference techniques · Advanced X-ray Imaging Techniques · Image Processing Techniques and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Mechanical Engineering, Iran University of Science and Technology 1 , Narmak, Tehran 16844 ,

School of Mechanical Engineering, Iran University of Science and Technology 2 , Narmak, Tehran 16844 ,

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