Detail publikace

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

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.

Klíčová slova

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

Autoři

MALÍKOVÁ, L.

Rok RIV

2015

Vydáno

7. 5. 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)

Ročník

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"
}