Publication detail

DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TEST SPECIMEN BY ODM METHOD

SEITL, S. MIARKA, P. RŮŽIČKA, V. MALÍKOVÁ, L. MERTA, I.

Original Title

DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TEST SPECIMEN BY ODM METHOD

Type

conference paper

Language

English

Original Abstract

Multi-parameter fracture mechanics is nowadays quite extensively applied when cracked structures/specimens are investigated. The reason is that it has been shown that it can be helpful and bring more accurate results when fracture processes happen in a larger region around the crack tip, what can be typical for material like concrete or other materials with quasi-brittle behaviour. Various relative crack length configurations have been chosen in order to investigate the importance of the higher-order terms of the Williams power expansion on the crack-tip stress field distribution in Wedge splitting test specimen. The higher-order terms are calculated by means of the over-deterministic method from displacements of nodes around the crack tip obtained by a finite element analysis in different radial distances from the crack tip. The effect of the constraint level is investigated. Although the third and higher terms of the Williams series are very often neglected, their influence on the opening stress values is investigated.

Keywords

ODM, WST, constraint, Williams series, FEM, stress intensity factor, displacement.

Authors

SEITL, S.; MIARKA, P.; RŮŽIČKA, V.; MALÍKOVÁ, L.; MERTA, I.

Released

24. 5. 2018

Publisher

VŠB-TUO Ostrava, Fakulta stavební, Katedra stavební mechaniky

Location

Ostrava

ISBN

978-80-248-4175-5

Book

Proceedings of scientific conference Structural Reliability / Modelling in mechanics 2018

Pages from

1

Pages to

7

Pages count

7

BibTex

@inproceedings{BUT147684,
  author="Stanislav {Seitl} and Petr {Miarka} and Vladimír {Růžička} and Lucie {Malíková} and Ildiko {Merta}",
  title="DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TEST SPECIMEN BY ODM METHOD",
  booktitle="Proceedings of scientific conference Structural Reliability / Modelling in mechanics 2018",
  year="2018",
  pages="1--7",
  publisher="VŠB-TUO Ostrava, Fakulta stavební, Katedra stavební mechaniky",
  address="Ostrava",
  isbn="978-80-248-4175-5"
}