Publication detail

Influence of the Testing Machine’s Stiffness on the Calibration Process of Ductile Failure Models

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

Original Title

Influence of the Testing Machine’s Stiffness on the Calibration Process of Ductile Failure Models

English Title

Influence of the Testing Machine’s Stiffness on the Calibration Process of Ductile Failure Models

Type

journal article - other

Language

en

Original Abstract

The paper deals with evaluation of the influence of the stiffness of testing machine on the calibration of parameters of ductile fracture models. The calibration is based on numerical simulation of experiments, realized by the special notched tube specimen. These are exposed to combined loading with different proportions between axial and torsional loading components. Input data for the computational simulation of experiments can either be based on theoretical proportion between the axial and torsional movement of the testing machine mechanism, or taken directly from specimen displacements measured by digital image correlation on the specimen's surface. The results show the difference in calibration parameters obtained by both methods.

English abstract

The paper deals with evaluation of the influence of the stiffness of testing machine on the calibration of parameters of ductile fracture models. The calibration is based on numerical simulation of experiments, realized by the special notched tube specimen. These are exposed to combined loading with different proportions between axial and torsional loading components. Input data for the computational simulation of experiments can either be based on theoretical proportion between the axial and torsional movement of the testing machine mechanism, or taken directly from specimen displacements measured by digital image correlation on the specimen's surface. The results show the difference in calibration parameters obtained by both methods.

Keywords

machine’s stiffness; ARAMIS; loading ratio; ductile failure model; flow curve

RIV year

2013

Released

28.11.2013

Pages from

31

Pages to

34

Pages count

4

BibTex


@article{BUT110741,
  author="Petr {Kubík} and František {Šebek} and Jindřich {Petruška} and Jiří {Hůlka}",
  title="Influence of the Testing Machine’s Stiffness on the Calibration Process of Ductile Failure Models",
  annote="The paper deals with evaluation of the influence of the stiffness of testing machine on the calibration of parameters of ductile fracture models. The calibration is based on numerical simulation of experiments, realized by the special notched tube specimen. These are exposed to combined loading with different proportions between axial and torsional loading components. Input data for the computational simulation of experiments can either be based on theoretical proportion between the axial and torsional movement of the testing machine mechanism, or taken directly from specimen displacements measured by digital image correlation on the specimen's surface. The results show the difference in calibration parameters obtained by both methods.",
  chapter="110741",
  howpublished="print",
  number="34",
  volume="9",
  year="2013",
  month="november",
  pages="31--34",
  type="journal article - other"
}