Crack deflection under mixed-mode loading investigated via generalized MTS criterion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F20%3APU137987" target="_blank" >RIV/00216305:26110/20:PU137987 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/5.0034664" target="_blank" >http://dx.doi.org/10.1063/5.0034664</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0034664" target="_blank" >10.1063/5.0034664</a>

Result language
angličtina
Original language name
Crack deflection under mixed-mode loading investigated via generalized MTS criterion
Original language description
The paper deals with investigations of a crack propagating in a semi-circular concrete disc loaded in bending. Various crack inclination angles ensure different degrees of I+II mixed-mode conditions. Generally, concrete material exhibits quasi-brittle fracture behavior, which is difficult to describe. It has been shown that fracture in this kind of material occurs in a larger zone around the crack tip. Thus, the multi-parameter fracture mechanics concept can help to understand the facture response better. Particularly, the Williams power expansion with a selected number of its initial terms is used for approximation of the crack-tip stress/displacement field. The over-deterministic method together with a finite element analysis of the problem is used for calculation of the coefficients of the series. The deflection angle of the initial crack is then assessed via generalized/multi-parameter form of Maximum Tangential Stress (MTS) criterion in dependence on various parameters. The theoretical results are compared to experimentally obtained data. The results prove that the multi-parameter description of the crack-tip fields can bring more accurate assessment of the fracture response of a crack under mixed-mode loading.
Czech name
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Czech description
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Project
<a href="/en/project/GJ18-12289Y" target="_blank" >GJ18-12289Y: Advanced characterization of cracks propagation in composites based on alkali activated matrix</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
FRACTURE AND DAMAGE MECHANICS: Theory, Simulation and Experiment
ISBN
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ISSN
0094-243X
e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
AIP Publishing
Place of publication
Melville, NY
Event location
Mallorca
Event date
Sep 15, 2020
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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