Usage of digital image correlation in assessment of behavior of block element pavement structure

Grygierek, Marcin; Grzesik, B.; Rokitowski, Przemysław; Rusin, Tomasz M.

doi:10.1088/1757-899x/356/1/012024

Cited by 7 publications

(9 citation statements)

References 5 publications

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“…Additional measures can be tested to increase the reliability of the test: searching either a more effective speckle pattern 7 or a road pavement with an easier-to-process natural speckle pattern 84 . A shaded surface can be also captured 37 , instead of direct natural or artificial lighting.…”

Section: Resultsmentioning

confidence: 99%

“…Currently, new measurement techniques are gaining momentum for characterizing heterogeneous materials 36 . In particular, DIC systems are increasingly used in testing in civil engineering laboratories 37 and for determining asphalt microstructure 38 , 39 , studying crack initiation and damage distribution 40 , 41 , and validating models 42 , 43 .…”

Section: Introductionmentioning

confidence: 99%

“…In fact, this technique has been applied successfully in the laboratory in compression tests 69 , 70 , fatigue tests 71 , shear tests 72 and indirect tensile tests 73 , 74 . However, few studies have been performed in the field 37 . DIC has already been tested on moving vehicles by Shoop et al 75 and in structural monitoring.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of pavement deflection under vehicle loads using a 3D-DIC system in the field

Núñez-Temes

Bastos

Arza-García

et al. 2022

Sci Rep

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This study aims to introduce the use of 3D-digital image correlation (DIC) to the in situ testing of pavements and to support the development of techniques for a rapid evaluation of the conservation status of existing roads. Little research was found on this topic. The passage of a car wheel on an asphalt pavement was adopted as a case study. The DIC measurements were compared to those gathered by contact sensors. From a qualitative point of view, the DIC measurements captured the realistic shape of a deflection basin. From a quantitative point of view, the deflection values provided by the DIC system had a mean error of 0.015 mm and a standard deviation of 0.011 mm. At the moment of highest load, these errors had a mean value and standard deviation of − 0.016 mm and 0.021 mm, respectively. Thus, to improve the accuracy of the system, we propose modifying the camera support, speckle pattern, and control of natural light.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of pavement deflection under vehicle loads using a 3D-DIC system in the field

Núñez-Temes

Bastos

Arza-García

et al. 2022

Sci Rep

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“…Extreme states selection Calculation of input parameters DIC has found application in both destructive and non-destructive testing, on both macro and micro scales. Grygierek et al [30] studied deformations of a road and pavement under a heavy truck load, while Rusinek and Kopernik [31] used 3D DIC for microscopic examination of biocompatible materials. Kujawińska et al [32] proposed the use of DIC in a hybrid system of simultaneous measurement of temperature distribution and displacement of engineering objects.…”

Section: Selection Of Planar Figurementioning

confidence: 99%

Detection of Anomaly in a Pretensioned Bolted Beam-to-Column Connection Node Using Digital Image Correlation and Neural Networks

2020

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Bolted connections, commonly applied in civil engineering structures, have many advantages. According to current trends, bolted connections in steel structures are designed as prestressed ones. Unfortunately, precise control of the prestressing forces is difficult, while the loosening (due to, e.g., dynamic interactions) may be dangerous for the entire structure. There are many control methods applied in the determination of the tightening level, among which are vision-based methods. The methods described so far enable—thanks to image processing—damage detection in connections with visible connectors. The level of the considered loosening was significant—in many cases, changes in connectors were visible with the naked eye, whereas the procedure presented here enables the detection of very small changes, impossible to detect without manual inspection of every single connector. It is not necessary to observe the connectors directly, but the near surrounding of the node should be visible. As a measurement technique, Digital Image Correlation (DIC) was used. The applied measurement method and the high sensitivity of the presented procedure makes the presented research original. The currently presented procedure, employing Artificial Neural Networks, based on the laboratory examination of an example of one selected beam-to-column connection of a two-story steel portal frame, was perfect in the detection of a change and in the determination of the number of loosened rows, 95%, and their location, 94%, with the number of false alarms below 1%.

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“…The DIC technique is also applied for testing the deformation of structures, e.g., road pavement structures. According to Grygierek et al [23], this method enables the assessment of the influence of a vehicle wheel load on the resulting deformation of wearing course.…”

Section: Application Of Dic System For Testing Deformation Of Roadmentioning

confidence: 99%

Application of Digital Image Correlation (DIC) Method for Road Material Testing

2019

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The theoretical part of the paper presents the framework of the digital image correlation (DIC) method as well as its advantages and limitations. The DIC technique that can be used in static and fatigue tests is a non-contact, non-interferometric optical method for measuring the surface deformation of structural elements, and material samples. In the experimental part of the paper, the implementation of the DIC method for the selected laboratory tests of building materials is described. The results of the tests on the samples of the materials used in road construction, i.e., asphalt mixtures (HMA), stone, soil stabilized with a hydraulic binder, and geosynthetics are discussed. The conducted research pointed out the possibilities of using the DIC method to evaluate the deformation of road materials in laboratory tests, taking into account their specificity. The variety of samples of tested material allowed to indicate the areas in which the DIC method and the algorithms used to evaluate the results give a significant advantage compared to tensometric measurement methods.

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Usage of digital image correlation in assessment of behavior of block element pavement structure

Cited by 7 publications

References 5 publications

Assessment of pavement deflection under vehicle loads using a 3D-DIC system in the field

Assessment of pavement deflection under vehicle loads using a 3D-DIC system in the field

Detection of Anomaly in a Pretensioned Bolted Beam-to-Column Connection Node Using Digital Image Correlation and Neural Networks

Application of Digital Image Correlation (DIC) Method for Road Material Testing

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