INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY
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 implem...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2018-10-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5080 |
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| author | Daniel Kytýř Tomáš Fíla Petr Koudelka Ivana Kumpová Michal Vopálenský Leona Vavro Martin Vavro |
| author_facet | Daniel Kytýř Tomáš Fíla Petr Koudelka Ivana Kumpová Michal Vopálenský Leona Vavro Martin Vavro |
| author_sort | Daniel Kytýř |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-254cc8b66042449193f0aeeda0b9d05b |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2018-10-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-254cc8b66042449193f0aeeda0b9d05b2025-08-20T02:42:08ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822018-10-01180202310.14311/APP.2018.18.00204230INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHYDaniel Kytýř0Tomáš Fíla1Petr Koudelka2Ivana Kumpová3Michal Vopálenský4Leona Vavro5Martin Vavro6Czech Academy of Sciences, Institute of Theoretical and Applied Mechanics, Prosecká 809/76, 190 00 Prague 9, Czech RepublicCzech Academy of Sciences, Institute of Theoretical and Applied Mechanics, Prosecká 809/76, 190 00 Prague 9, Czech RepublicCzech Academy of Sciences, Institute of Theoretical and Applied Mechanics, Prosecká 809/76, 190 00 Prague 9, Czech RepublicCzech Academy of Sciences, Institute of Theoretical and Applied Mechanics, Prosecká 809/76, 190 00 Prague 9, Czech RepublicCzech Academy of Sciences, Institute of Theoretical and Applied Mechanics, Prosecká 809/76, 190 00 Prague 9, Czech RepublicCzech Academy of Sciences, Institute of Geonics, Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicCzech Academy of Sciences, Institute of Geonics, Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicHigh-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.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5080in-situ loading device, four-point bending, 4D micro-CT, crack propagation |
| spellingShingle | Daniel Kytýř Tomáš Fíla Petr Koudelka Ivana Kumpová Michal Vopálenský Leona Vavro Martin Vavro INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY Acta Polytechnica CTU Proceedings in-situ loading device, four-point bending, 4D micro-CT, crack propagation |
| title | INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY |
| title_full | INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY |
| title_fullStr | INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY |
| title_full_unstemmed | INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY |
| title_short | INSTRUMENTATION OF FOUR-POINT BENDING TEST DURING 4D COMPUTED TOMOGRAPHY |
| title_sort | instrumentation of four point bending test during 4d computed tomography |
| topic | in-situ loading device, four-point bending, 4D micro-CT, crack propagation |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5080 |
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