Study on two-step extended digital image correlation method and its application

Jinlong Chen; Xiaoyan Hu; Xinhua Ji

doi:10.1117/12.839333

25 August 2009 Study on two-step extended digital image correlation method and its application

Jinlong Chen, Xiaoyan Hu, Xinhua Ji

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737556 (2009) https://doi.org/10.1117/12.839333
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Digital image correlation methodology has been extensively used to estimate full-field displacements according to the gray value of pairs of images, and the extended finite element method is proposed to deal with the discontinuous problem. Inspired by these recent advances, the extended finite element methodology is applied in the expression of the correlation coefficient in this paper. Two-step extended digital image correlation, which has the advantage of self-immunity in the irregular boundary such as crack, hole and so on, is developed to measure the full-field displacements using the partition of unity method as in the extended finite element method

Citation Download Citation

Jinlong Chen, Xiaoyan Hu, and Xinhua Ji "Study on two-step extended digital image correlation method and its application", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737556 (25 August 2009); https://doi.org/10.1117/12.839333

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