Publication detail

Comparison of Various Ductile Fracture Models and Their Fracture Envelopes

ŠEBEK, F. KUBÍK, P. HŮLKA, J. PETRUŠKA, J.

Original Title

Comparison of Various Ductile Fracture Models and Their Fracture Envelopes

English Title

Comparison of Various Ductile Fracture Models and Their Fracture Envelopes

Type

conference paper

Language

en

Original Abstract

For the best prediction of ductile fracture when complex loading is applied, it is necessary to calibrate and to use convenient ductile fracture model. Ductile fracture initiation is especially influenced by the shape of fracture envelope. Hence, such model should consider the dependence of the stress triaxiality and deviatoric state parameter to fracture strain. In this paper are presented shapes of fracture envelopes for various fracture models which were calibrated for the austenitic stainless steel. Firstly, the plasticity of given steel was investigated. Then, the calibration constants of selected ductile fracture models were identified using various specimens and experiments. Finally, the description of their suitability is discussed.

English abstract

For the best prediction of ductile fracture when complex loading is applied, it is necessary to calibrate and to use convenient ductile fracture model. Ductile fracture initiation is especially influenced by the shape of fracture envelope. Hence, such model should consider the dependence of the stress triaxiality and deviatoric state parameter to fracture strain. In this paper are presented shapes of fracture envelopes for various fracture models which were calibrated for the austenitic stainless steel. Firstly, the plasticity of given steel was investigated. Then, the calibration constants of selected ductile fracture models were identified using various specimens and experiments. Finally, the description of their suitability is discussed.

Keywords

ductile fracture, calibration, finite element method, austenitic stainless steel, non-linear least square method

RIV year

2013

Released

13.09.2013

Publisher

Katedra Mechaniki Teoretycznej i Stosowanej

Location

Gliwice, Polsko

ISBN

83-60102-65-1

Book

Modelling and Optimization of Physical Systems

Edition number

12

Pages from

53

Pages to

58

Pages count

6

Documents

BibTex


@inproceedings{BUT101448,
  author="František {Šebek} and Petr {Kubík} and Jiří {Hůlka} and Jindřich {Petruška}",
  title="Comparison of Various Ductile Fracture Models and Their Fracture Envelopes",
  annote="For the best prediction of ductile fracture when complex loading is applied, it is necessary to calibrate and to use convenient ductile fracture model. Ductile fracture initiation is especially influenced by the shape of fracture envelope. Hence, such model should consider the dependence of the stress triaxiality and deviatoric state parameter to fracture strain. In this paper are presented shapes of fracture envelopes for various fracture models which were calibrated for the austenitic stainless steel. Firstly, the plasticity of given steel was investigated. Then, the calibration constants of selected ductile fracture models were identified using various specimens and experiments. Finally, the description of their suitability is discussed.",
  address="Katedra Mechaniki Teoretycznej i Stosowanej",
  booktitle="Modelling and Optimization of Physical Systems",
  chapter="101448",
  howpublished="print",
  institution="Katedra Mechaniki Teoretycznej i Stosowanej",
  year="2013",
  month="september",
  pages="53--58",
  publisher="Katedra Mechaniki Teoretycznej i Stosowanej",
  type="conference paper"
}