Publication detail

Williams' expansion‐based approximation of the displacement field in an Al 2024 compact tension specimen reconstructed from optical measurements

SEITL, S. MALÍKOVÁ, L. RŮŽIČKA, V. MORENO MORALES, M. LOPÉZ-CRESPO, P.

Original Title

Williams' expansion‐based approximation of the displacement field in an Al 2024 compact tension specimen reconstructed from optical measurements

Type

journal article in Web of Science

Language

English

Original Abstract

A study on the approximation of the displacement field in the vicinity of a crack tip in a compact tension specimen made from Al 2024‐T351 is presented. Components of displacements vector are expressed using the linear elastic fracture mechanics theory via Williams' power series multi‐parameter formulation. Determination of the coefficients of the terms of this series is performed using a least squares‐based regression technique known as over deterministic method for which displacements data obtained experimentally via optical measurements are taken as inputs. The displacement fields reconstructed are discussed, and several conclusions are drawn regarding the number of the Williams' power series terms considered and the region where the displacement are investigated.

Keywords

crack tip fields, DIC, displacement field reconstruction, higher‐order terms, multi‐parameter approximation, optical measurements, Williams power series

Authors

SEITL, S.; MALÍKOVÁ, L.; RŮŽIČKA, V.; MORENO MORALES, M.; LOPÉZ-CRESPO, P.

Released

16. 5. 2018

Publisher

WILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA

ISBN

1460-2695

Periodical

Fatigue and Fracture of Engineering Materials and Structures

Year of study

41

Number

10

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2187

Pages to

2196

Pages count

10

URL

https://onlinelibrary.wiley.com/doi/full/10.1111/ffe.12842

BibTex

@article{BUT150803,
  author="Stanislav {Seitl} and Lucie {Malíková} and Vladimír {Růžička} and MARIA BELEN {MORENO MORALES} and Pablo {Lopéz-Crespo}",
  title="Williams' expansion‐based approximation of the displacement field in an Al 2024 compact tension specimen reconstructed from optical measurements",
  journal="Fatigue and Fracture of Engineering Materials and Structures",
  year="2018",
  volume="41",
  number="10",
  pages="2187--2196",
  doi="10.1111/ffe.12842",
  issn="1460-2695",
  url="https://onlinelibrary.wiley.com/doi/full/10.1111/ffe.12842"
}