Evaluation of Vertical Fatigue Cracks by Means of Flying Laser Thermography

Montinaro, Nicola; Cerniglia, Donatella; Pitarresi, Giuseppe

doi:10.1007/s10921-019-0586-5

Cited by 16 publications

(6 citation statements)

References 24 publications

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“…An alternative IRthermographic system that holds potential for robotization utilizes a small laser for heat injection instead of a bulkier flash lamp. The use of laser excitations to detect vertical cracks in metal parts and delamination/debonding in composite materials has been experimentally applied in [21][22][23]. The active IR techniques are also profitably used to inspect the typical flaws in metal additively manufactured parts [24][25].…”

Section: Ir-thermographymentioning

confidence: 99%

Robotization of the IR-Thermographic technique – impact on the visualisation quality and considerations on the data workflow

Montinaro,

Mineo,

Pantano

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Quality control automation is becoming increasingly popular in industrial production lines. Active thermography techniques are well-regarded for their adaptability, providing fast, non-contact, and full-field non-destructive evaluation. Automating thermographic evaluation can increase assessment speed and repeatability without sacrificing inspection accuracy. By using a robot arm to manipulate the thermographic setup, it becomes possible to inspect large components and refine scans on suspicious zones, even in parts with complex geometries. In this study, the performance of a new thermographic inspection platform is compared with a conventional setup to showcase the potential improvements. A plastic curved-shaped sample with artificial flat bottom hole defects is used as a benchmark for the comparison. The advantages and disadvantages of robotizing the infrared non-destructive setup are analyzed, and the impact of the data workflow and future research activities are also discussed.

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Section: Ir-thermographymentioning

confidence: 99%

Robotization of the IR-Thermographic technique – impact on the visualisation quality and considerations on the data workflow

Montinaro,

Mineo,

Pantano

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Over the years, infrared (IR) thermography has proven to be a versatile tool in the field of experimental mechanics and mechanical design. This contactless and nondestructive technique allows for comprehensive structural integrity investigations 1,2 (the defect detection in steel plates, 3 composites, [4][5][6][7] 3D printed materials 8 and welded joints, 9 and the evaluation of fatigue cracks 10 ), the stress analysis (thermoelastic stress analysis [TSA]) evaluations, [11][12][13][14][15][16] and energy-based assessments to study fatigue processes. 17,18 Thermography-based methods have come a long way, thanks to improved equipment and robust data analysis tools.…”

Section: Introductionmentioning

confidence: 99%

Fatigue limit estimation of metals based on the thermographic methods: A comprehensive review

Zaeimi,

De Finis,

Palumbo

et al. 2024

Fatigue Fract Eng Mat Struct

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Infrared thermography has been under review in the last 30 years due to its versatility and potential in the detection of the thermal signature associated with intrinsic energy phenomena due to dissipative processes, specifically those relying on mechanical fatigue. Nowadays, it is a well‐established technique that can support mechanical and structural engineers to implement a damage‐tolerant design, assess the residual life, and finally characterize the fatigue behavior of materials. The aim of this work is to review all thermography‐based approaches and procedures for fatigue limit estimation by rapid tests, drawing considerations on the applicability of thermal methods in fatigue assessment of mechanical components, proposing the capabilities of different thermal indices in fatigue assessment, and discussing the pros and cons of each method as well as the open points. On one hand, this review intends to sum up what has already been done in the field; on the other hand, it provides a guideline to direct new researches toward issues that should be resolved or understood.

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“…Furthermore, it can be helpful when rotating components have to be inspected [25][26][27] or for remote control. Non-contact laser methods have been used to obtain automated crack detection and diagnosis in an aluminium [28] and steel plates [29] , to evaluate debonding in composites [30] and to investigate thickness reduction in pipelines [31] . In the scientific literature, few works are comparing interferometric and refractometric techniques [ 9 , 32 ], with the former currently being used more in non-destructive evaluation.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Two Emerging Laser-Based Flaw-Detection Techniques – Considerations and Practicalities

vangi¹,

Gulino²,

Montinaro³

et al. 2022

SSRN Journal

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Evaluation of Vertical Fatigue Cracks by Means of Flying Laser Thermography

Cited by 16 publications

References 24 publications

Robotization of the IR-Thermographic technique – impact on the visualisation quality and considerations on the data workflow

Robotization of the IR-Thermographic technique – impact on the visualisation quality and considerations on the data workflow

Fatigue limit estimation of metals based on the thermographic methods: A comprehensive review

On the Use of Two Emerging Laser-Based Flaw-Detection Techniques – Considerations and Practicalities

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