Observation of notch effect in Al6061-T6 specimens under tensile loading using digital image correlation and finite element method

2020 ◽  
Vol 34 (3) ◽  
pp. 1049-1058
Author(s):  
Liang Wang ◽  
Jung-Hoon Park ◽  
Nak-Sam Choi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Tensile Loading ◽  
Image Correlation ◽  
Notch Effect ◽  
Element Method

Elastic-Plastic Stress Analyses by Digital Image Correlation and Nonlinear Hybrid Method

2006 ◽  
Vol 3-4 ◽  
pp. 39-46
Author(s):  
Kenji Machida
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Digital Image Correlation ◽  
Stress Field ◽  
Digital Image ◽  
Hybrid Method ◽  
Crack Tip ◽  
Image Correlation ◽  
Elastic Plastic ◽  
Nonlinear Hybrid

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.

The Influence of Facet Size and Filtering on the Results of Strain Fields’ Investigation Performed on Small Surfaces Using Digital Image Correlation

2015 ◽  
Vol 732 ◽  
pp. 179-182
Author(s):  
Martin Hagara ◽  
Róbert Huňady ◽  
Matúš Kalina
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Digital Image Correlation ◽  
Numerical Solution ◽  
Digital Image ◽  
Strain Analysis ◽  
Image Correlation ◽  
Strain Fields ◽  
Tension Loading ◽  
Facet Size

The contribution deals with the investigation of the influence of facet size and smoothing on the results obtained by low-speed digital image correlation (DIC) system by strain analysis performed on specimen with a small hole loaded by tension loading. In conclusion the obtained results are verified by a numerical solution using finite element method.

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