P2 - Multiple Flash Thermography for Non-destructive Testing of lightweight components
- Event
- AMA Conferences 2017
2017-05-30 - 2017-06-01
Nürnberg, Germany - Band
- Proceedings IRS² 2017
- Chapter
- IP - Poster Session
- Author(s)
- G. Schober, S. Kremling, T. Hochrein - SKZ – German Plastics Center, Würzburg (Germany), D. Hoffmann - Julius-Maximilians-Universität, Würzburg (Germany), A. Stöhr - HENSEL-VISIT GmbH & Co. KG, Würzburg (Germany)
- Pages
- 813 - 817
- DOI
- 10.5162/irs2017/iP2
- ISBN
- 978-3-9816876-4-4
- Price
- free
Abstract
In the field of non-destructive testing (NDT) active flash thermography is state of the art. There, the test object is heated with a short intense thermal pulse, e.g. by means of powerful flashbulbs, radiant heaters or lasers and the heat wave propagates into the object. Defects influence the heat wave propagation and thus the temperature distribution on the surface of the object. Further developments have been focused on the increase of pulse energy of the excitation sources to enhance the penetration depth and the thermal contrast of defects. However, in the case of lightweight components the higher amount of heat may damage the object's surface. Therefore, multiple flash thermography offers a promising approach for not only increasing the probability of detection of defects, but also minimizing the maximum surface temperature.