Název:
Instrumentation of four-point bending test during 4D computed tomography
Autoři:
Kytýř, Daniel ; Fíla, Tomáš ; Koudelka_ml., Petr ; Kumpová, Ivana ; Vopálenský, Michal ; Vavro, Leona ; Vavro, Martin Typ dokumentu: Příspěvky z konference Konference/Akce: Youth Symposium on Experimental Solid Mechanics /16./, Traunkirchen (AT), 20180517
Rok:
2018
Jazyk:
eng
Abstrakt: High-resolution time-lapse micro-focus X-ray computed tomography is an effective method for investigation of deformation processes on volumetric basis including fracture propagation characteristics of non-homogeneous materials subjected to mechanical loading. This experimental method requires implementation of specifically designed loading devices to X-ray imaging setups. In case of bending tests, our background research showed that no commercial solution allowing for reliable investigation of so called fracture process zone in quasi-brittle materials is currently available. Thus, this paper is focused on description of recently developed in-situ four-point bending loading device and its instrumentation for testing of quasi-brittle materials. Proof of concept together with the pilot experiments were successfully performed in a CT scanner TORATOM. Based on results of the pilot experiments, we demonstrate that crack development and propagation in a quasi-brittle material can be successfully observed in 3D using high resolution 4D micro-CT under loading.
Klíčová slova:
4D micro-CT; crack propagation; four-point bending; in-situ loading device Číslo projektu: ATCZ38, EF16_019/0000766 Poskytovatel projektu: GA MŠk Zdrojový dokument: Acta Polytechnica CTU Proceedings, ISBN 978-80-01-06474-0 Poznámka: Související webová stránka: https://ojs.cvut.cz/ojs/index.php/APP/article/view/5080/4794
Instituce: Ústav teoretické a aplikované mechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0288173