Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 11, No. 41 (2017)

Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements

Author and affiliation details
  • S. Seitl Corresponding author seitl@ipm.cz
  • L. Malíkova
  • J. Sobek
  • P. Frantík
  • P. Lopez-Crespo
DOI
10.3221/IGF-ESIS.41.43
Pages
Pages 323-331
Published
Published inVol. 11, No. 41 (2017)Go to the issue

Abstract

A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. 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 coefficients of terms of this series is performed using a least squares-based regression technique known as over deterministic method (ODM) for which displacements data obtained experimentally via optical measurements are taken as inputs. The stress fields reconstructed based on the displacement data obtained experimentally by means of optical measurements are verified by means of the stress field approximations derived for the normalized CT specimen via hybrid elements.

Keywords

Article history

  1. ReceivedUntil the next stage: 0 days
  2. AcceptedUntil the next stage: 0 days
  3. Published

How to cite

APA

Seitl, S., Malíkova, L., Sobek, J., Frantík, P., & Lopez-Crespo, P. (2017). Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements. Fracture and Structural Integrity, 11(41), Pages 323–331. https://doi.org/10.3221/IGF-ESIS.41.43

IEEE

S. Seitl, L. Malíkova, J. Sobek, P. Frantík, and P. Lopez-Crespo, “Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements,” Fracture and Structural Integrity, vol. 11, no. 41, pp. Pages 323–331, 2017, doi: 10.3221/IGF-ESIS.41.43.

MLA

Seitl, S., et al. “Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements.” Fracture and Structural Integrity, vol. 11, no. 41, 2017, pp. Pages 323–331. https://doi.org/10.3221/IGF-ESIS.41.43.

Chicago

Seitl, S., L. Malíkova, J. Sobek, P. Frantík, and P. Lopez-Crespo. 2017. “Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements.” Fracture and Structural Integrity 11 (41): Pages 323–331. https://doi.org/10.3221/IGF-ESIS.41.43.

Harvard

Seitl, S., Malíkova, L., Sobek, J., Frantík, P. and Lopez-Crespo, P. (2017) ‘Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements’, Fracture and Structural Integrity, 11(41), pp. Pages 323–331. doi: 10.3221/IGF-ESIS.41.43.

Vancouver

Seitl S, Malíkova L, Sobek J, Frantík P, Lopez-Crespo P. Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements. Fracture and Structural Integrity. 2017;11(41):Pages 323-331. doi:10.3221/IGF-ESIS.41.43

BibTeX

@article{seitl2017, author = {Seitl, S. and Malíkova, L. and Sobek, J. and Frantík, P. and Lopez-Crespo, P.}, title = {Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements}, journal = {Fracture and Structural Integrity}, year = {2017}, volume = {11}, number = {41}, pages = {Pages 323--331}, doi = {10.3221/IGF-ESIS.41.43}, url = {https://doi.org/10.3221/IGF-ESIS.41.43}, issn = {1971-8993} }

RIS

TY - JOUR AU - Seitl, S. AU - Malíkova, L. AU - Sobek, J. AU - Frantík, P. AU - Lopez-Crespo, P. TI - Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2017 DA - 2017/06/28 VL - 11 IS - 41 SP - Pages 323 EP - 331 DO - 10.3221/IGF-ESIS.41.43 UR - https://doi.org/10.3221/IGF-ESIS.41.43 SN - 1971-8993 ER -

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