Crack Detection Using EddyTherm

Zenzinger, G.; Bamberg, Joachim; Dumm, M.; Nutz, P.

doi:10.1063/1.1916868

Cited by 24 publications

(9 citation statements)

References 1 publication

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“…The results demonstrated that some of the systems were able to detect cracks as small as 0.040 inches with false call rates which remained less than 1%. Meanwhile, defect detection of magnitude crack length and depth of 0.4 mm × 0.12 mm was detected on the heated metallic components [11].…”

Section: Defect Location and Orientationmentioning

confidence: 97%

Defect Characterization Based on Eddy Current Technique: Technical Review

Ghoni

Dollah

Sulaiman

et al. 2014

Advances in Mechanical Engineering

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Eddy current testing is widely used for nondestructive evaluation of metallic structures in characterizing numerous types of defects occurring in various locations. It offers remarkable advantages over other nondestructive techniques because of its ease of implementation. This paper presents a technical review of Eddy current technique in various scope of defect detection. The first part presents Eddy current evaluation on various defects location and orientation such as steam generator tubes, stress crack corrosion, and fatigue cracks. The next section analyzes the use of pulsed Eddy current and pulsed Eddy current thermography as an alternative method for monitoring the growth of cracks with the aid of computational techniques for postsignal analysis.

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Section: Defect Location and Orientationmentioning

confidence: 97%

Defect Characterization Based on Eddy Current Technique: Technical Review

Ghoni

Dollah

Sulaiman

et al. 2014

Advances in Mechanical Engineering

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“…Eddy current stimulated thermography is increasingly receiving attention from academic researchers. Zenzinger et al [9] simulated inductive heating by using finite element method (FEM) models and investigated the detection limits with experiments. In order to gain fundamental knowledge about the induced current density distribution in the component under test, Vrana et al [7] presented an analytical model for the calculation of the current density distribution in a finite body.…”

Section: Fig 2 A) Extraction Of Temp Tions Of the Temperature Histomentioning

confidence: 99%

Pulsed Eddy Current Thermography and Applications

Tian

Wilson

Cheng

et al. 2011

Lecture Notes in Electrical Engineering

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Abstract. In this chapter we report on the application of the pulsed eddy current thermography inspection technique to the detection and quantification of defects in a variety of materials. After introducing the appropriate modelling and simulation techniques an overview of a typical PEC thermography system setup is provided. Applications of the system for defect detection in nickel alloys, composite materials and ferritic materials including multiple complex cracking in rail-tracks are discussed.

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“…Recently, some emerging techniques have been developed in order to solve the mechanism issue in the industrial applications, like infrared thermography (IRT). IRT has many advantages including non-contact, greater inspection speed, higher resolution and sensitivity, detectability of inner defects due to heat conduction, and real-time measurements over a large detection area [3][4][5]. In addition, considering the large number of blades and short inspection time for the evaluation of the blade surface fatigue cracks, the inspection speed and detection accuracy are the factors that should be prioritized.…”

Section: Introductionmentioning

confidence: 99%

“…The ECPT also does not require any contact with the inspected target of turbine blades. For the quantitative evaluation of surface fatigue cracks, the length and width of crack can be quantitatively inspected through infrared image sequences [4]. However, the crack depth is difficult to determine only from infrared image sequences directly, which is the main factor leading to the blade fracture.…”

Section: Introductionmentioning

confidence: 99%

An efficient electromagnetic and thermal modelling of eddy current pulsed thermography for quantitative evaluation of blade fatigue cracks in heavy-duty gas turbines

Tong

Xie

Liu

et al. 2020

Mechanical Systems and Signal Processing

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An efficient electromagnetic and thermal modelling of eddy current pulsed thermography for quantitative evaluation of blade fatigue cracks in Heavy-duty Gas Turbines The blade surface fatigue cracks often occur during service of Heavy-Duty Gas Turbines (HDGT) in high temperature, high rotational velocity and high frequency vibration environment. These fatigue cracks seriously threaten the safe operation of heavy-duty gas turbines, which would cause significant hazard or economic loss. The quantitative evaluation of blade surface fatigue cracks is extremely significant to HDGT. Eddy current pulsed thermography (ECPT) is an emerging non-destructive testing technology and show great potential for fatigue crack evaluation. This paper proposes a novel electromagnetic and thermal modelling of ECPT to achieve fast and effective

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Crack Detection Using EddyTherm

Cited by 24 publications

References 1 publication

Defect Characterization Based on Eddy Current Technique: Technical Review

Defect Characterization Based on Eddy Current Technique: Technical Review

Pulsed Eddy Current Thermography and Applications

An efficient electromagnetic and thermal modelling of eddy current pulsed thermography for quantitative evaluation of blade fatigue cracks in heavy-duty gas turbines

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