Detail publikace

Over-deterministic method: The influence of rounding numbers on the accuracy of the values of Williams' expansion terms

RŮŽIČKA, V. MALÍKOVÁ, L. SEITL, S.

Originální název

Over-deterministic method: The influence of rounding numbers on the accuracy of the values of Williams' expansion terms

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A study on the accuracy of the values of Williams’ expansion terms influenced by rounding numbers is presented. The results are presented taking into account a three-point bend single edge notched beam. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely via its multi-parameter formulation, i.e. by Williams’ power series (WPS). Determination of the coefficients of the terms of this series is performed using the least squares-based regression technique known as the over-deterministic method (ODM), for which displacements data obtained numerically in software ANSYS are taken as inputs. The values of Williams’ expansion terms based on the displacement data obtained are calculated by using various levels of rounding numbers and the results are compared and discussed.

Klíčová slova

Over-deterministic method; Rounding numbers; Williams’ expansion; Fracture mechanics; Stress field

Autoři

RŮŽIČKA, V.; MALÍKOVÁ, L.; SEITL, S.

Vydáno

1. 11. 2017

Nakladatel

Gruppo Italiano Frattura

ISSN

1971-8993

Periodikum

Frattura ed Integrita Strutturale

Ročník

11

Číslo

42

Stát

Italská republika

Strany od

128

Strany do

135

Strany počet

8

URL

http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_14.pdf

Plný text v Digitální knihovně

http://hdl.handle.net/11012/180525

BibTex

@article{BUT146038,
  author="Vladimír {Růžička} and Lucie {Malíková} and Stanislav {Seitl}",
  title="Over-deterministic method: The influence of rounding numbers on the accuracy of the values of Williams' expansion terms",
  journal="Frattura ed Integrita Strutturale",
  year="2017",
  volume="11",
  number="42",
  pages="128--135",
  doi="10.3221/IGF-ESIS.42.14",
  issn="1971-8993",
  url="http://www.gruppofrattura.it/pdf/rivista/numero42/numero_42_art_14.pdf"
}