Detail publikačního výsledku

Estimation of the plastic zone size from the multi-parameter/generalized form of fracture criteria on various mode I geometries

MALÍKOVÁ, L.

Originální název

Estimation of the plastic zone size from the multi-parameter/generalized form of fracture criteria on various mode I geometries

Anglický název

Estimation of the plastic zone size from the multi-parameter/generalized form of fracture criteria on various mode I geometries

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Three cracked geometries loaded in mode I are investigated and the plastic zone size calculated. For estimation of the plastic zone size, two fracture criteria are used (Rankine and von Mises). Whereas the classical criteria give the same results (the stress intensity factor being identical for each geometry), the data from numerical simulations exhibit differences for various geometries. It is shown that the multi-parameter form of the criteria enables to obtain results that agree better to the numerical ones. Particularly, the Williams expansion is utilized for approximation of the stress components that serve as inputs for the fracture criteria. It is concluded that taking into account several more initial terms of the series can help to predict the plastic zone size more accurately.

Anglický abstrakt

Three cracked geometries loaded in mode I are investigated and the plastic zone size calculated. For estimation of the plastic zone size, two fracture criteria are used (Rankine and von Mises). Whereas the classical criteria give the same results (the stress intensity factor being identical for each geometry), the data from numerical simulations exhibit differences for various geometries. It is shown that the multi-parameter form of the criteria enables to obtain results that agree better to the numerical ones. Particularly, the Williams expansion is utilized for approximation of the stress components that serve as inputs for the fracture criteria. It is concluded that taking into account several more initial terms of the series can help to predict the plastic zone size more accurately.

Klíčová slova

Crack-tip stress field, Williams expansion, higher-order terms, fracture mechanics, plastic zone size

Klíčová slova v angličtině

Crack-tip stress field, Williams expansion, higher-order terms, fracture mechanics, plastic zone size

Autoři

MALÍKOVÁ, L.

Rok RIV

2016

Vydáno

07.05.2015

ISBN

978-80-970964-9-6

Kniha

11th International Conference on Local Mechanical Properties, LMP 2014

ISSN

1662-9795

Periodikum

Key Engineering Materials (web)

Svazek

2015

Číslo

662

Stát

Švýcarská konfederace

Strany od

169

Strany do

172

Strany počet

4

BibTex

@inproceedings{BUT120843,
  author="Lucie {Malíková}",
  title="Estimation of the plastic zone size from the multi-parameter/generalized form of fracture criteria on various mode I geometries",
  booktitle="11th International Conference on Local Mechanical Properties, LMP 2014",
  year="2015",
  journal="Key Engineering Materials (web)",
  volume="2015",
  number="662",
  pages="169--172",
  isbn="978-80-970964-9-6",
  issn="1662-9795"
}