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MULTI-PARAMETER MTS AND SED CRITERION APPLIED ON A CRACK IN AN ALKALI-ACTIVATED CONCRETE SPECIMEN UNDER MIXED-MODE LOADING
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SYSNO ASEP 0543986 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title MULTI-PARAMETER MTS AND SED CRITERION APPLIED ON A CRACK IN AN ALKALI-ACTIVATED CONCRETE SPECIMEN UNDER MIXED-MODE LOADING Author(s) Malíková, Lucie (UFM-A) ORCID
Miarka, Petr (UFM-A) ORCID
Simonová, H. (CZ)Number of authors 3 Source Title ENGINEERING MECHANICS 2020 (IM2020). - Brno : Brno Univ Technol, 2020 / Fuis V. - ISSN 1805-8248 - ISBN 978-80-214-5896-3 Pages (2020), s. 338-341 Number of pages 4 s. Publication form Print - P Action IM2020 - International Conference on Engineering Mechanics /26./ Event date 24.11.2020 - 25.11.2020 VEvent location Brno Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords t-stress ; fracture ; field ; Multi-parameter fracture mechanics ; Alkali-activated concrete ; Mixed-mode loading ; mts ; sed Subject RIV JN - Civil Engineering OECD category Civil engineering Institutional support UFM-A - RVO:68081723 UT WOS 000667956100077 DOI 10.21495/5896-3-338 Annotation The paper is devoted to an analysis of a crack propagation in a semi-circular concrete specimen under three-point bending. I+II mixed-mode loading is ensured via an inclined crack. Crack deflection angle is investigated by means of the generalized/multi-parameter form of the Maximum Tangential Stress (MTS) criterion and Strain Energy Density (SED) criterion as well as experimentally. The multi-parameter fracture mechanics concept applied in this work is based on the approximation of the crack-tip stress field by means of the Williams series expansion (WE). It has been proved that this approach can help to describe crack behavior in some kinds of materials better than the classical (one-parameter: stress intensity factor) fracture mechanics. This conclusion is discussed also in this paper. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024
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