Hybrid image processing approach for autonomous crack area detection and tracking using local digital image correlation results applied to single-fiber interfacial debonding

Tabiai, Ilyass; Tkachev, Gleb; Diehl, Patrick; Frey, Steffen; Ertl, Thomas; Therriault, Daniel; Lévesque, Martin

doi:10.1016/j.engfracmech.2019.106485

Cited by 27 publications

(7 citation statements)

References 41 publications

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“…This paper is not focused on expensive tools for monitoring the structure. Therefore, an automation visual test selects to develop the decision system at a lower cost in the software field [14]. Meanwhile, the software for data processing supports not only data extracted from a charge-coupled device (CCD) and supplementary metal-oxide-semiconductor (CMOS) sensor but also supports other sensors such as Ground Penetrating Radar (GPR) [8,10].…”

Section: Structural Health Monitoringmentioning

confidence: 99%

Experimental Study on A Reinforced Concrete Element to Extract the Durability Index with the Automated Visualization

Nejad¹,

Lajevardi²,

Ravanshadnia³

2022

Preprint

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Reinforced Concrete (RC) durability is a crucial feature to estimate the long-term quality and structural performance. Since life span estimation is vital for maintenance resource planning, a degradation model of RC component extracts by updating the status of structures and trending the components’ state over time in terms of durability. Surface erosion, spalling, cracks, and other expose defects on the RC component lead to increase factors adversely affecting concrete durability in structures. This research presents an approach based on automated visualization for extracting quantitative indexes beside or instead of visual inspection without subjective interspersion of humans or probable human errors during the inspection. The durability index (D_i) will extract based on damage probability and its growth in order to extract the severity of failure and risk. Measurement operation by automated software has been double-checked by manual measurement tools, and data will verify randomly in this method. The result shows damage growth in this load-bearing component by 24 percentages over the definite time. According to degradation models, it shows this component may pass the relative thresholds as a limit state of operation to fail. This significant difference between expected time and designing time determines the D_i equal to 5 out of 10.

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Section: Structural Health Monitoringmentioning

confidence: 99%

Experimental Study on A Reinforced Concrete Element to Extract the Durability Index with the Automated Visualization

Nejad¹,

Lajevardi²,

Ravanshadnia³

2022

Preprint

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“…Finally author had concluded that with the help of DIC one could find the accurate as well as high precision of the crack location as well as measurement even in case of very large and complex patterns of crack. I. Tabiai et al [3] in 2019 implemented a combined approach which was based on the digital image correlation and the image processing methodologies. The combined theory was practically applied to monitor digital cracks in a mechanically loaded system.…”

Section: Tungsten Inert Gas Weldingmentioning

confidence: 99%

“…But with the help of DIC method everything becomes handy. [3] At present in the industry still old or traditional methods are used for detection of crack patterns in the material. The method which is generally used is visual inspection where the investigator estimates the crack width with the help of magnifier which has pre printed line widths.…”

Section: Introduction a Developmentmentioning

confidence: 99%

“…But all of these techniques are manual and depend on the human skills and so very much prone to errors in measurement and also time consuming which can also affect the test procedure and also the structural behavior when the load is applied on the material. [3] Further the materials which have low deformation capacity then measurement at near to failure of elements is not possible due to safety risk of the person as well the safety of machinery equipment. This type of problem can be solved by utilizing linear variable differential transformers (LVDTs) which are also known as linear displacement sensors.…”

Section: Introduction a Developmentmentioning

confidence: 99%

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Crack Monitoring in the Welding Parts of Different Alloys of Aluminium using Digital Image Correlation

Hanief¹

2021

IJRASET

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Welding joints are directly or indirectly prone to different stress and strain damages. During the test performance of welding material the crack appears and these cracks continue to grow and then move from one surface region to another region. This load is continued to apply till the test fails. It is done to check the strength limit of the welded part. Also it is not easy to find the starting point where the cracks start to appear. There are various ways or techniques to find the cracks in the welded parts during the load tests. It includes ultrasound, thermography and use of strain gauges etc. In this dissertation work a procedure for finding cracks in the welded parts after performing certain strength tests utilizing digital image correlation (DIC) method is proposed. The main benefit of this method is that one can find the cracks of macroscopic category and also monitoring can be done during performing of tests. Here digital images are captured during the different load cycles. As load applied is more than the strength of material cracks start appear to visible. So it is possible to find and detect the location of crack on the welded part. Since the digital images are stored in the database so it becomes easier for verification and comparison. This test is performed only for the cracks present on the surface of the welded material.I.

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“…The latter simplifies the modeling process due to the implicit solution to the geometric features of the constructed discrete cracks and is widely used when a large number of mechanical modeling is not considered, since only a sufficiently accurate and complete distribution of cracks needs to be provided (Li and Li, 2015; Li et al, 2019). To describe the crack geometry more accurately, commonly used methods include digital image processing methods (DIC) (Zhutovsky and Hooton, 2016), hybrid image processing method (Tabiai et al, 2019), and neutron and X-ray scanning (Van Den Heede et al, 2016). However, a universal non-destructive means to obtain complete information about the cracks has not been found yet.…”

Section: Introductionmentioning

confidence: 99%

Study on influence of geometric characteristics of cracks on HAM coupling transfer and thermal performance of multi-layer cellular concrete wall

Wei

Zhou

2022

Journal of Building Physics

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The effect of concrete cracks on the evaluation of the thermal performance of walls has not been effectively considered within the assessment of the thermal and hygroscopic performance of buildings. Based on the dual permeability model, a conjugate method is proposed to reconstruct the PDE equation of unsaturated porous materials with cracks. The reliability of the model is verified from three angles: the heat-moisture coupling benchmark of matrix material, the analytical solution of two-dimensional single fracture heat flow coupling problem and the moisture absorption problem of unsaturated cracks. The reliability of the model is verified from three perspectives: the benchmark of thermal and hygroscopic coupling of matrix materials, the analytical solution to the two-dimensional single-break thermal flow coupling problem, and the hygroscopic problem of unsaturated cracks. The effect of heat and moisture transfer in cracked concrete was quantified by detailed modeling of cracks in terms of the probability of over-penetration, crack roughness, crack density, length, and angle of a two-dimensional discrete crack network, showing that cracks contribute to moisture transfer. This is followed by a 10 day experimental simulation of the meteorological environment, comparing the quantities of moisture accumulation, thermal performance, internal surface temperature and humidity within the fractured and non-fractured wall structures, illustrating the potential adverse effects of cracks on thermal performance and moisture transfer in walls under characteristic conditions. Finally, the necessity of applying moisture-proof layer to the damaged wall is demonstrated by comparing the results before and after the application of the moisture-proof layer.

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Hybrid image processing approach for autonomous crack area detection and tracking using local digital image correlation results applied to single-fiber interfacial debonding

Cited by 27 publications

References 41 publications

Experimental Study on A Reinforced Concrete Element to Extract the Durability Index with the Automated Visualization

Experimental Study on A Reinforced Concrete Element to Extract the Durability Index with the Automated Visualization

Crack Monitoring in the Welding Parts of Different Alloys of Aluminium using Digital Image Correlation

Study on influence of geometric characteristics of cracks on HAM coupling transfer and thermal performance of multi-layer cellular concrete wall

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