Elastic-Plastic Stress Analyses by Digital Image Correlation and Nonlinear Hybrid Method |
| Journal |
Applied Mechanics and Materials (Volumes 3 - 4) |
| Volume |
Advances in Experimental Mechanics IV |
| Edited by |
J.M. Dulieu-Barton and S. Quinn |
| Pages |
39-46 |
| DOI |
10.4028/www.scientific.net/AMM.3-4.39 |
| Online since |
August, 2006 |
| Authors |
Kenji Machida
|
| Keywords |
Digital Image Correlation, Elastic-Plastic FEM, Hybrid Method, J-Integral, Singular Stress Field |
| Abstract |
In previous studies, the elastic stress field near the crack tip was investigated by digital image correlation and the 2-D intelligent hybrid method. In this study, the 2-D nonlinear hybrid method was developed to analyze the elastic-plastic singular stress field near the crack tip from the displacement data obtained by digital image correlation. Then, the 2-D nonlinear hybrid method was carried out to evaluate stress, strain and J integral. The 3-D elastic-plastic finite element method was conducted on the same specimen as the experiment, and the validity of this approach was discussed from the comparison of the experiment and 3-D finite element method. |
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