Detail publikace

Identification and application of Gurson–Tvergaard–Needleman model for sub-sized three-point-bend geometry

STRATIL, L. HADRABA, H. KOZÁK, V. DLOUHÝ, I.

Anglický název

Identification and application of Gurson–Tvergaard–Needleman model for sub-sized three-point-bend geometry

Typ

Článek recenzovaný mimo WoS a Scopus

Jazyk

en

Originální abstrakt

The process identification and determination of micro-mechanical parameters of Gurson–Tvergaard–Needleman (GTN) model for Eurofer97 steel in ductile regime was carried out. The possibility to derive the GTN model parameters from smooth tensile specimens was verified. The process identification of the model parameters was done by combination of fractography and metallography examination of the broken tensile specimens and finite element analysis using Abaqus code. Crack resistance curve of the material was determined on sub-sized pre-cracked bend bars. The agreement between experimentally determine and simulated crack resistance curves was not satisfactory. The possible reasons for different behaviour of the GTN model are discussed.

Klíčová slova anglicky

GTN model, Eurofer97, smooth tensile test, J–R curve, KLST specimen

Vydáno

2013-08-08

Nakladatel

Institute of Thermomechanics AS CR, v. v. i.

Místo

Praha

ISSN

0001-7043

Ročník

2013 (58)

Číslo

2

Strany od–do

141–155

Počet stran

15

BIBTEX


@article{BUT101089,
  author="Luděk {Stratil} and Hynek {Hadraba} and Vladislav {Kozák} and Ivo {Dlouhý}",
  title="Identification and application of Gurson–Tvergaard–Needleman model for sub-sized three-point-bend geometry",
  journal="Acta Technica ČSAV",
  year="2013",
  volume="2013 (58)",
  number="2",
  pages="141--155",
  issn="0001-7043"
}