Publication detail

Calibration of ductile fracture criteria at negative stress triaxiality

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

Original Title

Calibration of ductile fracture criteria at negative stress triaxiality

English Title

Calibration of ductile fracture criteria at negative stress triaxiality

Type

journal article in Web of Science

Language

en

Original Abstract

The aluminium alloy 2024-T351 and AISI 1045 carbon steel was examined in scope of uncoupled ductile fracture criteria calibration using newly designed specimen. Its novel geometry allowed to reach extremely low stress triaxialities. The analysis of fracture envelopes was carried out with comparison of each criteria cut-off regions after the calibration where one novel criterion, KHPS, has been introduced. Ductile fracture criteria implemented into the commercial finite element code Abaqus through user subroutine VUMAT were applied to simulation of compression of newly designed cylinder with specific recess to show the crack prediction ability using the element deletion technique. Crack initiation loci together with force responses were compared to experimental observations.

English abstract

The aluminium alloy 2024-T351 and AISI 1045 carbon steel was examined in scope of uncoupled ductile fracture criteria calibration using newly designed specimen. Its novel geometry allowed to reach extremely low stress triaxialities. The analysis of fracture envelopes was carried out with comparison of each criteria cut-off regions after the calibration where one novel criterion, KHPS, has been introduced. Ductile fracture criteria implemented into the commercial finite element code Abaqus through user subroutine VUMAT were applied to simulation of compression of newly designed cylinder with specific recess to show the crack prediction ability using the element deletion technique. Crack initiation loci together with force responses were compared to experimental observations.

Keywords

Ductile fracture; Stress triaxiality; Carbon steel; Aluminium alloy; Plasticity; Phenomenological criteria

Released

28.04.2016

Pages from

90

Pages to

103

Pages count

14

BibTex


@article{BUT122125,
  author="Petr {Kubík} and František {Šebek} and Jiří {Hůlka} and Jindřich {Petruška}",
  title="Calibration of ductile fracture criteria at negative stress triaxiality",
  annote="The aluminium alloy 2024-T351 and AISI 1045 carbon steel was examined in scope of uncoupled ductile fracture criteria calibration using newly designed specimen. Its novel geometry allowed to reach extremely low stress triaxialities. The analysis of fracture envelopes was carried out with comparison of each criteria cut-off regions after the calibration where one novel criterion, KHPS, has been introduced. Ductile fracture criteria implemented into the commercial finite element code Abaqus through user subroutine VUMAT were applied to simulation of compression of newly designed cylinder with specific recess to show the crack prediction ability using the element deletion technique. Crack initiation loci together with force responses were compared to experimental observations.",
  chapter="122125",
  doi="10.1016/j.ijmecsci.2016.02.001",
  howpublished="print",
  number="4",
  volume="108-109",
  year="2016",
  month="april",
  pages="90--103",
  type="journal article in Web of Science"
}