THE USE OF THERMOVISION FOR THE ANALYSIS OF SHEET DEFORMATION

1 ŻABA Krzysztof
Co-authors:
2 ZOŁA Kamil 3 PUCHLERSKA Sandra 4 LEŚNIAK Dariusz
Institutions:
1 AGH University of Science and Technology, Cracow, Poland, EU, krzyzaba@agh.edu.pl
2 AGH University of Science and Technology, Cracow, Poland, EU, kamillo0988@gmail.com
3 AGH University of Science and Technology, Cracow, Poland, EU, spuchler@agh.edu.pl
4 AGH University of Science and Technology, Cracow, Poland, EU, dlesniak@agh.edu.pl
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
855-859
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
26 views / 13 downloads
Abstract

Each metal is characterized by its typical stacking-fault energy (SFE). The higher this energy is, the less often are stacking errors in the crystal lattice. The stacking-fault energy has a large influence on the behavior of the metal during plastic deformation, which is mainly related to the relationship between SFE and the dislocation ability for climbing and lateral slip. The measurement of deformations is usually performed in a uniaxial tension test. In order to determine the deformations in real time, GAMA's ARAMIS system is used, which is non-contact and is independent of the tested material. Its operation involves the use of digital image correlation. An interesting solution seems to be the use of thermovision to measure deformation by analyzing thermographic images during stretching of materials. The aim of the study was a comparative analysis of the results obtained by measuring strains using the ARAMIS system and temperature using a FLIR thermal imaging camera. Samples cut from sheets of aluminium, copper and steel alloys were designated for testing. In the first frame, the most favorable way of preparing the surface of the plates was determined in order to obtain reliable temperature measurements by increasing the emissivity factor. The samples were then stretched. Then a correlation was made between the temperature and the deformation for a given material. The results allow us state that thermovision can be successfully used in the future to measure material deformations.

Keywords: Termovision, 3D scanning
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