Publication result detail

Calibration of Selected Ductile Fracture Criteria Using Two Types of Specimens

KUBÍK, P.; ŠEBEK, F.; PETRUŠKA, J.; HŮLKA, J.; RŮŽIČKA, J.; ŠPANIEL, M.; DŽUGAN, J.; PRANTL, A.

Original Title

Calibration of Selected Ductile Fracture Criteria Using Two Types of Specimens

English Title

Calibration of Selected Ductile Fracture Criteria Using Two Types of Specimens

Type

Paper in proceedings (conference paper)

Original Abstract

This paper presents the calibration of three universal ductile fracture criteria with the stress triaxiality and the normalized third invariant of deviatoric stress dependence. Xue-Wierzbicki, Bai-Wierzbicki and Extended Mohr-Coulomb criteria are calibrated using butterfly specimen and newly designed notched tube specimen for an austenitic stainless steel. Different stress states necessary for successful calibration are generated by suitable combination of tension/compression-shear or tension/compression-torsion loading of both specimens, respectively. Suitability of the specimens for ductile fracture criteria calibration is evaluated comparing the range of reached stress states, the homogeneity of stress in process zone and appropriateness for the computational simulation of tests. Possible combination of above mentioned results with tensile testing of standard and notched cylindrical specimens is discussed, too.

English abstract

This paper presents the calibration of three universal ductile fracture criteria with the stress triaxiality and the normalized third invariant of deviatoric stress dependence. Xue-Wierzbicki, Bai-Wierzbicki and Extended Mohr-Coulomb criteria are calibrated using butterfly specimen and newly designed notched tube specimen for an austenitic stainless steel. Different stress states necessary for successful calibration are generated by suitable combination of tension/compression-shear or tension/compression-torsion loading of both specimens, respectively. Suitability of the specimens for ductile fracture criteria calibration is evaluated comparing the range of reached stress states, the homogeneity of stress in process zone and appropriateness for the computational simulation of tests. Possible combination of above mentioned results with tensile testing of standard and notched cylindrical specimens is discussed, too.

Keywords

butterfly specimen, NT specimen, parameters identification, fracture strain

Key words in English

butterfly specimen, NT specimen, parameters identification, fracture strain

Authors

KUBÍK, P.; ŠEBEK, F.; PETRUŠKA, J.; HŮLKA, J.; RŮŽIČKA, J.; ŠPANIEL, M.; DŽUGAN, J.; PRANTL, A.

RIV year

2017

Released

14.02.2014

ISBN

9783037859346

Book

Materials Structure & Micromechanics of Fracture VII

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Volume

592-593

State

Swiss Confederation

Pages from

258

Pages to

261

Pages count

4

BibTex

@inproceedings{BUT102682,
  author="Petr {Kubík} and František {Šebek} and Jindřich {Petruška} and Jiří {Hůlka} and Jan {Růžička} and Miroslav {Španiel} and Jan {Džugan} and Antonín {Prantl}",
  title="Calibration of Selected Ductile Fracture Criteria Using Two Types of Specimens",
  booktitle="Materials Structure & Micromechanics of Fracture VII",
  year="2014",
  journal="Key Engineering Materials (print)",
  volume="592-593",
  pages="258--261",
  isbn="9783037859346",
  issn="1013-9826"
}