Naslov
3D full-field measurement over the entire loading history of the in-situ experiment observed via μ- tomography

Autori
Tomičević, Zvonimir ; Jailin, Clément ; Hild, Francois ; Roux, Stéphane

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts 37th Danubia Adria Symposium on Advances in Experimental Mechanics / Helmut, Holl - Linz : Johannes Kepler University, 2021, 29-30

ISBN
978-3-9504997-0-4

Skup
37th Danubia Adria Symposium on Advances in Experimental Mechanics

Mjesto i datum
Linz, Austrija, 21.09.2021. - 24.09.2021

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Computed tomography ; In-situ mechanical investigation ; Projection based Digital Volume Correlation

Sažetak
The application of Computed Tomography (CT) gave a significant contribution in material sciences, providing 3D images of the scanned microstructure. Furthermore, with development of in-situ testing machines, the investigated material can be imaged without interruption when subjected to mechanical loadings. The visualization of the material response of the tested sample becomes accessible in the bulk. Coupling the acquired 3D scans with imaging analysis techniques, e.g. full field measurement such as Digital Volume Correlation (DVC), reveals the deformation between two registered states. However, the major limitation of CT scanning is the required acquisition time to acquire a high- quality image. Further, the material behavior between the two consecutive scans is not accessible. The aforementioned constraints are successfully surpassed with the so-called Projection-based Digital Volume Correlation (P- DVC), since the proposed method measures the 3D displacement field based on the radiographs. Hence, the complete loading history can be analyzed with considerable time savings. The aim of this study is the 4D characterization of an in-situ tensile test monitored with a lab CT scanner. 3D displacement fields are measured considering only one projection per loading step. Last, the results obtained via P-DVC are compared with the DVC measurements at the same loading stage.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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