Structural Design Considerations for Ultralight Aircraft

Baughn, T.; Johnson, D. B.

doi:10.4271/861388

Cited by 2 publications

(3 citation statements)

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“…Information about defect parameters such as size, depth and thermal resistance can be obtained by applying post-processing procedures to the thermograms. Methods to measure the importance of the damaged area were developed which are generally based on inversion procedures (Cielo 1984, Baughn and Johnson 1986, Krapez et al 1991, Favro et al 1992. Unfortunately, as evidenced by Vavilov (1992), in the inverse problem different combinations of defect parameters could produce the same temperature signal.…”

Section: 212mentioning

confidence: 99%

Recent advances in the use of infrared thermography

Meola

Carlomagno

2004

Meas. Sci. Technol.

458

242

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Infrared thermography transforms the thermal energy, emitted by objects in the infrared band of the electromagnetic spectrum, into a visible image. This feature represents a great potentiality to be exploited in many fields, but this technique is still not adequately enclosed in industrial instrumentation because of a lack of adequate knowledge; at first sight, it seems too expensive and difficult to use. The aim of the present paper is to shortly overview existing work and to describe the most relevant experiences devoted to the use of infrared thermography in three main fields, i.e. thermo-fluid dynamics, technology and cultural heritage, which have been performed in the department the authors belong to. Results may be regarded from two points of view, either as validating infrared thermography as a full measurement instrument, or as presenting infrared thermography as a novel technique able to deal with several requirements, which are difficult to perform with other techniques. This study is also an attempt to give indications for a synergic use of the different thermographic methods and sharing experiences in the different fields.

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Section: 212mentioning

confidence: 99%

Recent advances in the use of infrared thermography

Meola

Carlomagno

2004

Meas. Sci. Technol.

458

242

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“…A previously used figure of merit [9] is the contrast between the defective and the surrounding nondefective region of the specimen defined as (1), where sd(t) and sn(t) are the thermal responses for the defective and nondefective regions respectively and O'd(t) and O'n(t) are the standard deviations for the two regions. Contrast is not an absolute measurement, however it is a good indicator of the relative improvement in the sensitivities obtained when varying parameters.…”

Section: Constraints For Determination Of Optimize Pulse Shapementioning

confidence: 99%

“…Thermal Nondestructive Testing (TNDT) is an increasingly common technique for detecting delaminations in structures [1][2][3][4][5][6][7]. Typically, TNDT uses radiative heaters such as flash or quartz lamps to heat the specimen.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Thermographic Detection of Delaminations with Computational Pulse Shaping

Winfree

1998

Review of Progress in Quantitative Nondestructive Evaluation

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Structural Design Considerations for Ultralight Aircraft

Cited by 2 publications

References 1 publication

Recent advances in the use of infrared thermography

Recent advances in the use of infrared thermography

Enhanced Thermographic Detection of Delaminations with Computational Pulse Shaping

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