Detail publikace

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

MALÍKOVÁ, L. MIARKA, P. ŠIMONOVÁ, H.

Originální název

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

mixed-mode, crack deflection, MTS criterion,semi-circular disc

Autoři

MALÍKOVÁ, L.; MIARKA, P.; ŠIMONOVÁ, H.

Vydáno

30. 11. 2020

Nakladatel

AIP Publishing

Místo

Melville, NY

ISSN

0094-243X

Periodikum

AIP conference proceedings

Ročník

2309

Stát

Spojené státy americké

Strany od

Strany do

Strany počet

BibTex

@inproceedings{BUT166250,
  author="Lucie {Malíková} and Petr {Miarka} and Hana {Šimonová}",
  title="Crack deflection under mixed-mode loading investigated via generalized MTS criterion",
  booktitle="FRACTURE AND DAMAGE MECHANICS: Theory, Simulation and Experiment",
  year="2020",
  journal="AIP conference proceedings",
  volume="2309",
  pages="1--8",
  publisher="AIP Publishing",
  address="Melville, NY",
  doi="10.1063/5.0034664",
  issn="0094-243X"
}