Přístupnostní navigace
E-application
Search Search Close
Publication detail
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" }