Development of Infrared Techniques for Practical Defect Identification in Bonded Joints

Waugh, Rachael C.

doi:10.1007/978-3-319-22982-9

Cited by 17 publications

(17 citation statements)

References 89 publications

(139 reference statements)

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“…For inspections of composite structures also nondestructive methods are used such as acoustic, radiographic and ultrasonic testing [4]. Among them, a method of infrared thermography can be found.…”

Section: Thermography As One Of Non -Destructive Methodsmentioning

confidence: 99%

IRT research on influence of long-term loads on defects in FRP strengthened RC beams

et al. 2019

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It has been more than two decades, since FRP strengthening method was first time used in Poland. Therefore there is a natural need to develop an efficient quality assessment technique to verify design assumptions of strengthening in existing structures after many years. One of the promising non-destructive method of quality assessment is infrared thermography (IRT). In this paper, an initial study on recognition of delamination mainly in CFRP laminates using IRT was conducted as well as the influence of long-term loads on defects in CFRP strengthened RC beams was presented.

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Section: Thermography As One Of Non -Destructive Methodsmentioning

confidence: 99%

IRT research on influence of long-term loads on defects in FRP strengthened RC beams

et al. 2019

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“…There are two main types of thermography: passive and active. Based on the sources and nature of energy for active thermography, there are six different types: pulse [188], lock-in/modulated [131], pulse phase [72], vibrothermography/thermosonics [43], eddy current [199] and laser spot thermography [17]. Thermography is mostly used in studying thermal behaviour of manufacturing operations.…”

Section: Non-destructive Evaluation For Automated Degradation Assessmentmentioning

confidence: 99%

Continuous maintenance and the future – Foundations and technological challenges

et al. 2016

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“…The Kurtosis value can be classified in three general categories according to its deviation from a normal distribution: mesokurtic (normal distribution), leptokurtic (high degree of peakedness) and platykurtic (low degree of peakedness) [8] .…”

Section: Higher Order Statistics Thermography (Host)mentioning

confidence: 99%

Basalt fibre laminates non-destructively inspected after low-velocity impacts

Сфарра¹,

Ibarra-Castanedo²,

Sarasini³

et al. 2016

FME Transaction

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In this work, the use of advanced thermographic techniques for the post-impact defect detection in basalt fibre reinforced composite laminates was investigated. The laminates were previously impacted at different energies, namely 7.5, 15 and 22.5 J and then subjected to accelerated environmental aging or to a coating process in order to conceal the previous damage due to low velocity impact. In both cases the defects could be identified using infrared thermography in the mid-wave infrared (MWIR) spectrum even after the treatments. In addition, short-wave infrared (SWIR) results were employed with the aim to clearly identify unsuspected resin-rich areas. Therefore, the non-thermal part of the infrared spectrum (SWIR) can be coupled with the thermal part (MWIR) providing a complete infrared vision beyond what is perceptible to the naked eye, i.e., in the visible spectrum.

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Development of Infrared Techniques for Practical Defect Identification in Bonded Joints

Abstract: Identification of kissing defects in adhesive bonds has been reported to be an area of concern across a range of industries. To date the majority of work on this matter has focused on the development of advanced ultrasonic techniques.The current thesis focuses on the use of thermography,

Cited by 17 publications

References 89 publications

IRT research on influence of long-term loads on defects in FRP strengthened RC beams

IRT research on influence of long-term loads on defects in FRP strengthened RC beams

Continuous maintenance and the future – Foundations and technological challenges

Basalt fibre laminates non-destructively inspected after low-velocity impacts

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