Simplified approach for quantitative inspections of concrete structures using digital image correlation

2022 ◽  
Vol 252 ◽  
pp. 113725
Author(s):  
Francis Thériault ◽  
Martin Noël ◽  
Leandro Sanchez
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Concrete Structures ◽  
Image Correlation ◽  
Simplified Approach

Research on the Surface Deformability of Reinforced Concrete Beams with the Use of Digital Image Correlation Method

2015 ◽  
Vol 240 ◽  
pp. 25-30
Author(s):  
Rafal Ostromecki ◽  
Karol Suprynowicz
Keyword(s):  
Reinforced Concrete ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Distribution ◽  
Concrete Beams ◽  
Concrete Structures ◽  
Correlation Method ◽  
Reinforced Concrete Beams ◽  
Image Correlation ◽  
Digital Image Correlation Method

The results of experimental research on a single span reinforced concrete beams are presented in the paper. The study was undertaken to explain some issues, amongst which the most important one was the recognition of strain distribution in the shear zone of RC beams. It was decided to adopt the modified Digital Image Correlation Method (DIC) and the software created by K. Suprynowicz to follow the surface deformations. This was the first application of the software to the concrete structures behaviour analysis. Hence, another aim of the study was to confirm the proper susceptibility and usefulness of this tool for further research on concrete elements. What’s more the scope of the software future development was defined, that would allow for observation of some particular phenomena characteristic for concrete, like cracking. Finally, the conclusion is presented, that application of the proposed variant of DIC method to concrete structures is promising, although for the recognition of shear strain distribution it requires increasing the accuracy by increasing spatial resolution of images and modifications of the software.

scholarly journals VIDEO IMAGE-BASED DYNAMIC BEHAVIOR ANALYSIS OF CONCRETE STRUCTURES BY USING DIGITAL IMAGE CORRELATION METHOD

2017 ◽  
Vol 5 (1) ◽  
pp. 246-255 ◽  
Author(s):  
Michio IMAI ◽  
Masahiko OHTA ◽  
Kenichiro TSUYUKI ◽  
Hiroshi IMAI ◽  
Satoru MIURA ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Behavior Analysis ◽  
Dynamic Behavior ◽  
Digital Image ◽  
Concrete Structures ◽  
Correlation Method ◽  
Video Image ◽  
Image Correlation ◽  
Digital Image Correlation Method

scholarly journals Uniaxial Static Stress Estimation for Concrete Structures Using Digital Image Correlation

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 319 ◽  
Author(s):  
Junhwa Lee ◽  
Eun Kim ◽  
Seongwoo Gwon ◽  
Soojin Cho ◽  
Sung-Han Sim
Keyword(s):  
Stress Relaxation ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Displacement Field ◽  
Concrete Structures ◽  
Estimation Method ◽  
Static Stress ◽  
Image Correlation ◽  
Accurate Estimation ◽  
Stress Estimation

This paper proposes a static stress estimation method for concrete structures, using the stress relaxation method (SRM) in conjunction with digital image correlation (DIC). The proposed method initially requires a small hole to be drilled in the concrete surface to induce stress relaxation around the hole and, consequently, a displacement field. DIC measures this displacement field by comparing digital images taken before and after the hole-drilling. The stress level in the concrete structure is then determined by solving an optimization problem, designed to minimize the difference between the displacement fields from DIC and the one from a numerical model. Compared to the pointwise measurements by strain gauges, the full-field displacement obtained by DIC provides a larger amount of data, leading to a more accurate estimation. Our theoretical results were experimentally validated using concrete specimens, demonstrating the efficacy of the proposed method.

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