Original title: MULTI-PARAMETER MTS AND SED CRITERION APPLIED ON A CRACK IN AN ALKALI-ACTIVATED CONCRETE SPECIMEN UNDER MIXED-MODE LOADING
Authors: Malíková, Lucie ; Miarka, Petr ; Simonová, H.
Document type: Papers
Conference/Event: IM2020 - International Conference on Engineering Mechanics /26./, Brno (CZ), 20201124
Year: 2020
Language: eng
Abstract: 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.
Keywords: Alkali-activated concrete; field; fracture; Mixed-mode loading; mts; Multi-parameter fracture mechanics; sed; t-stress
Host item entry: ENGINEERING MECHANICS 2020 (IM2020), ISBN 978-80-214-5896-3, ISSN 1805-8248

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0322634

Permalink: http://www.nusl.cz/ntk/nusl-542018


The record appears in these collections:
Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers