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Tomographic investigation of the sandstone fracture toughness
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SYSNO ASEP 0557024 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Tomographic investigation of the sandstone fracture toughness Author(s) Vavřík, Daniel (UTAM-F) RID, SAI, ORCID
Beneš, Pavel (UTAM-F) RID, SAI
Fíla, Tomáš (UTAM-F) RID, SAI, ORCID
Koudelka_ml., Petr (UTAM-F) RID, SAI, ORCID
Kumpová, Ivana (UTAM-F) RID, SAI, ORCID
Vavro, Martin (UGN-S) RID, ORCIDNumber of authors 6 Source Title Engineering mechanics 2022. Book of full texts. - Prague : Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2022 / Fischer C. ; Náprstek J. - ISSN 1805-8248 - ISBN 978-80-86246-48-2 Pages s. 397-400 Number of pages 4 s. Publication form Print - P Action International Conference Engineering mechanics 2022 Event date 09.05.2022 - 12.05.2022 VEvent location Milovy Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords fracture process zone ; crack path ; quasi-brittle material ; X-Ray computed tomography ; four-point bending test OECD category Materials engineering R&D Projects EF16_019/0000766 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UTAM-F - RVO:68378297 ; UGN-S - RVO:68145535 DOI 10.21495/51-2-397 Annotation It is well known that the measured values of the fracture toughness of quasi brittle materials are influenced by material heterogeneity, dimensions, boundary conditions, and unequal tension and compression properties. Standard testing methods supposing isotropic material, in contrary the quasi-brittle materials differ from this theoretical expectation, therefore this approach may fail. The authors present Local Fracture Toughness Testing (LFTT) method to overcome this obstacle. LFFT based on a complex methodology using a series of tomographic reconstructions recorded during specimen loading is calculated independently of the outside boundary conditions. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2023 Electronic address https://www.engmech.cz/im/proceedings/show_p/2022/397
Number of the records: 1