scholarly journals DIGITAL IMAGE CORRELATION METHOD FOR ANALYSIS OF REINFORCED CONCRETE STRUCTURES

2020 ◽  
pp. 27-33
Author(s):  
Ya.Z. Blikharskyy ◽  
◽  
N.S. Kopіika ◽  
Keyword(s):  
Reinforced Concrete ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Concrete Structures ◽  
Correlation Method ◽  
Image Correlation ◽  
Reinforced Concrete Structures ◽  
Digital Image Correlation Method

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 Formation of a complete stress-strain curve of concrete using digital image corellation

2021 ◽  
Vol 3 (7 (111)) ◽  
pp. 37-44
Author(s):  
Yaroslav Blikharskyy ◽  
Andrii Pavliv
Keyword(s):  
Reinforced Concrete ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Concrete Structures ◽  
Strain Curve ◽  
Image Correlation ◽  
Correlation Technique ◽  
Reinforced Concrete Structures ◽  
Stress Strain Curve ◽  
Stress Strain

This paper reports the development and verification of a new procedure for formation of a complete stress-strain curve of concrete with a downward region of strain by using a digital image correlation method. A new technique to build spectle patterns on the surface of concrete is described. That makes it possible to accurately enough reproduce the spectle patterns on the surface of concrete and perform a high-quality analysis of strains involving digital image correlation. The advantages of this research technique have been established when predicting the formation of internal cracks in concrete followed by their propagation. In addition, using the digital image correlation methodology makes it possible to obtain strains of the entire studied plane of the sample at each stage of loading. This procedure provides an opportunity to investigate a change in strains and the movement of individual points or areas when studying concrete surfaces. That is a relevant issue as it enables more detailed diagnostics of existing reinforced concrete structures. To check the accuracy of this procedure application, a mechanical gauge with an accuracy of 0.001 mm was additionally installed. 2 high-speed monochrome CCD cameras with different lenses were used in determining concrete strains involving the digital image correlation technique. The deformations were controlled with a period of time every 250 ms. The load was controlled by an additional third camera with a speed of 50 frames/second. The result of the experimental study is the formed full concrete destruction diagram with a downward region of strain. The deviation of the results of strains based on the mechanical gauge with an accuracy of 0.001 mm with a base of 200 mm from those acquired by the digital image correlation procedure was mainly up to 10 %, which confirms the reliability of the results. The results of this work allow a more accurate calculation of reinforced concrete structures in the practice of design, inspection, or reinforcement of existing structures

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