Publication detail

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.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

1. 7. 2019

Publisher

Gruppo Italiano Frattura

Location

online

ISBN

1971-8993

Periodical

Frattura ed Integrita Strutturale

Year of study

49

Number

1

State

Republic of Italy

Pages from

97

Pages to

106

Pages count

10

URL

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

Full text in the Digital Library

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"
}