Mobile shearography system for the inspection of aircraft and automotive components

Kalms, Michael; Osten, Wolfgang

doi:10.1117/1.1566968

Cited by 51 publications

(4 citation statements)

References 14 publications

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“…All these applications utilize single-component shearography systems for qualitative inspection. Figure 22 shows an example of an investigation of an aeroplane panel that experienced damage due to a hailstorm [112].…”

Section: Qualitative Non-destructive Testingmentioning

confidence: 99%

Shearography technology and applications: a review

Francis

Tatam

Groves

2010

Meas. Sci. Technol.

223

126

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Shearography is a full-field speckle interferometric technique used to determine surface displacement derivatives. For an interferometric technique, shearography is particularly resilient to environmental disturbances and has hence become an invaluable measurement tool outside of the optics laboratory. Furthermore, the inclusion of additional measurement channels has turned shearography from a qualitative inspection tool into a system suitable for quantitative surface strain measurement. In this review article we present a comprehensive overview of the technique, describing the principle of operation, optical configurations, image processing algorithms and applications, with a focus on more recent technological advances.

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Section: Qualitative Non-destructive Testingmentioning

confidence: 99%

Shearography technology and applications: a review

Francis

Tatam

Groves

2010

Meas. Sci. Technol.

223

126

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“…The following examples should visualize some results of our work by testing airplanes or airplane components. The shearographic investigations were made in cooperation with Airbus Germany (NDT-Group Bremen) and EADS Military Aircrafts (Germany, Manching) [4][5][6]. The inspected material was in all here represented results CFRP.…”

Section: Testing Of Technical Objectsmentioning

confidence: 99%

A Mobile Shearography System for Non-Destructive Testing of Industrial and Artwork Components

Kalms¹,

Jueptner²

2005

KEM

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By reason of their sensitivity, accuracy and non-contact as well as non-destructive characteristics, modern optical methods such as digital speckle shearography have found an increasing interest for NDT applications on factory floors. With new carbon fiber technologies and other lightweight constructions in aircraft and automotive manufacturing, adapted examination designs and especially developed testing methods are necessary. Shearography as a coherent optical method has been widely accepted as a useful NDT tool. It is a robust interferometric method to determine locations with maximum stress on various material structures. However, limitations of this technique can be found in the bulky equipment components, the interpretation of complex shearographic result images and at the work with non-cooperative surfaces such as dark absorber and bright shining reflectors. We report a mobile shearography system that was especially designed for investigations at aircraft and automotive construction sites. It is also useful to find out the current conditions of artworks.

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“…Shearography is a long established interferometric technique for defect detection on composite structures such as aircrafts and automobile components 23,24 or in the field of conservation. [25][26][27] Recently, the invention of the computational shearing interferometry allows the determination of the full complex wave field.…”

Section: Introductionmentioning

confidence: 99%

Soft tissue elastography via shearing interferometry

et al. 2018

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Early detection of cancer can significantly increase the survival chances of patients. Palpation is a traditional method in order to detect cancer; however, in minimally invasive surgery the surgeon is deprived of the sense of touch. We demonstrate how shearing elastography can recover elastic parameters and furthermore can be used to localize stiffness imhomogenities even if hidden underneath the surface. Furthermore, the influence of size and depth of the stiffness imhomogenities on the detection accuracy and localization is investigated.

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Mobile shearography system for the inspection of aircraft and automotive components

Cited by 51 publications

References 14 publications

Shearography technology and applications: a review

Shearography technology and applications: a review

A Mobile Shearography System for Non-Destructive Testing of Industrial and Artwork Components

Soft tissue elastography via shearing interferometry

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