Digital Image Correlation Study on Micro-Crystal of Poly-Crystal Aluminum Specimen under Tensile Load through SEM

Abstract:

In this study, the digital image correlation method(with Newton-Raphson iteration method) is used to measure the in-plane deformation of poly-crystal aluminum. When the specimen is exerted a tensile load, the strain distribution of the specimen surface will be inhomogeneous. The micro-deformation of the poly-crystal aluminum is studied under a SEM(scanning electron microscope), a series of images of the micro crystal are captured during the loading process. By using digital image correlation to analyze the images, the displacement and strain of a micro-crystal are obtained, which provide important data for further analysis of the inhomogeneous properties of the poly-crystal aluminum.

• Periodical: Key Engineering Materials (Volumes 326-328)
• Pages: 155-158
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.326-328.155
• Online since: December 2006
• Authors: Zhi Qiang Guo, Hui Min Xie, Bao Chen Liu, Bing Pan, Peng Wan Chen, Qing Ming Zhang, Feng Lei Huang
• Keywords: Digital Image Correlation (DIC), Micro-Crystal, Newton-Raphson Iteration Method, Scanning Electron Microscope (SEM), Strain

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