Detail publikace

How to Enhance Efficiency and Accuracy of the Over-Deterministic Method Used for Determination of the Coefficients of the Higher-Order Terms in Williams Expansion

ŠESTÁKOVÁ, L.

Originální název

How to Enhance Efficiency and Accuracy of the Over-Deterministic Method Used for Determination of the Coefficients of the Higher-Order Terms in Williams Expansion

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Using higher-order terms of the Williams expansion is necessary for assessment of fracture behavior of quasi-brittle materials. Multi-parameter fracture mechanics enables more accurate determination of the stress/displacement field even in a larger distance from the crack tip, thus the extended zone with non-elastic behavior typical for this kind of material can be well described. The so-called over-deterministic method (ODM) seems to be a suitable tool for the higher-order terms coefficients calculation, but its utilization exhibits some limitations. Therefore, extensive analyses have been performed in order to summarize recommendations regarding the mesh sensitivity, boundary conditions influence, etc. List of pieces of advice and authors experiences presented in the end of this work should contribute to more accurate and effective utilization of the ODM.

Klíčová slova

Quasi-brittle fracture, Williams expansion, higher-order terms, over-deterministic method

Autoři

ŠESTÁKOVÁ, L.

Rok RIV

2012

Vydáno

1. 12. 2012

Místo

Switzerland

ISSN

1662-9795

Periodikum

Key Engineering Materials (web)

Ročník

245

Číslo

1

Stát

Švýcarská konfederace

Strany od

120

Strany do

125

Strany počet

6

BibTex

@article{BUT98980,
  author="Lucie {Malíková}",
  title="How to Enhance Efficiency and Accuracy of the Over-Deterministic Method Used for Determination of the Coefficients of the Higher-Order Terms in Williams Expansion",
  journal="Key Engineering Materials (web)",
  year="2012",
  volume="245",
  number="1",
  pages="120--125",
  issn="1662-9795"
}