Detail publikace

Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels

SEITL, S. MIARKA, P. RŮŽIČKA, V. MALÍKOVÁ, L. CRUCES, A. LOPÉZ-CRESPO, P.

Originální název

Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A study on the accuracy of the approximation of the displacement field around of crack tip in a sample made from bridge steel (S355) is main objective of contribution. Linear elastic fracture mechanics (LEFM) theory in framework of multi-parameter formulation, i.e. postulated by Williams is used to determine of coefficients of Williams power series terms. Over deterministic method was used to calculate the terms based on the least squares regression technique, applied on data from numerical simulation and experiment on S355 steel grades. Comparison between the stress fields (by principal stress s1 and von Mises stress sHMH) obtain from experimental measurement DIC, Hybrid method and obtain from reconstruction by using various number of Williams power terms are quantified in order to get key information around the crack tip region on bridge steel specimens.

Klíčová slova

Displacement; Crack-tip stress fields; DIC; High order terms; Multi-parameter approximation accuracy; Williams power series.

Autoři

SEITL, S.; MIARKA, P.; RŮŽIČKA, V.; MALÍKOVÁ, L.; CRUCES, A.; LOPÉZ-CRESPO, P.

Vydáno

1. 7. 2019

Nakladatel

Gruppo Italiano Frattura

Místo

online

ISSN

1971-8993

Periodikum

Frattura ed Integrita Strutturale

Ročník

49

Číslo

1

Stát

Italská republika

Strany od

97

Strany do

106

Strany počet

10

URL

https://www.fracturae.com/index.php/fis/article/view/2522

Plný text v Digitální knihovně

http://hdl.handle.net/11012/200444

BibTex

@article{BUT160732,
  author="Stanislav {Seitl} and Petr {Miarka} and Vladimír {Růžička} and Lucie {Malíková} and Alejandro {Cruces} and Pablo {Lopéz-Crespo}",
  title="Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels",
  journal="Frattura ed Integrita Strutturale",
  year="2019",
  volume="49",
  number="1",
  pages="97--106",
  doi="10.3221/IGF-ESIS.49.10",
  issn="1971-8993",
  url="https://www.fracturae.com/index.php/fis/article/view/2522"
}