Fracture monitoring of steel and GFRP reinforced concrete beams using acoustic emission and digital image correlation techniques

2021 ◽  
Author(s):  
Gaurav Sharma ◽  
Shruti Sharma ◽  
Sandeep K. Sharma
Keyword(s):  
Acoustic Emission ◽  
Reinforced Concrete ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Image Correlation ◽  
Correlation Techniques

scholarly journals Key aspects of digital image correlation in impact tests of reinforced concrete beams

2019 ◽  
Author(s):  
Morgan Johansson ◽  
Rasmus Rempling ◽  
Gonzalo S. D. de Ulzurrun ◽  
Carlos Zanuy
Keyword(s):  
Reinforced Concrete ◽  
Digital Image Correlation ◽  
Digital Image ◽  
High Speed ◽  
Concrete Beams ◽  
Computational Cost ◽  
Reinforced Concrete Beams ◽  
Image Correlation ◽  
High Speed Photography ◽  
Key Aspects

<p>This paper studies 2-D high speed photography combined with digital image correlation (DIC) applied to experimental research of reinforced concrete beams at moderate loading rates. The aim of the present research is to understand the influence of 2-D DIC set-up parameters in the results. Drop-weight tests have been completed in 1180 × 100 × 100 mm longitudinally reinforced concrete beams. The study has confirmed results sensitivity to image subdivision and mesh properties. While smaller subdivision sizes allow to obtain results nearby boundaries, being more suitable to study local effects, larger sizes enhance computational cost, increase mesh stability and accuracy. A discussion of key aspects of 2-D DIC for measuring different parameters (such as acceleration, displacements, strains and strain-rate) is presented along this paper.</p>

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 Experimental study on shear deformation of reinforced concrete beams using digital image correlation

2019 ◽  
Vol 181 ◽  
pp. 670-698 ◽  
Author(s):  
Zheng Huang ◽  
Yongming Tu ◽  
Shaoping Meng ◽  
Cristian Sabau ◽  
Cosmin Popescu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Digital Image Correlation ◽  
Shear Deformation ◽  
Digital Image ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Image Correlation
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