Publication result detail

Modeling of ductile tearing for RAFM steel Eurofer97

STRATIL, L.; ŠIŠKA, F.; HADRABA, H.; DLOUHÝ, I.

Original Title

Modeling of ductile tearing for RAFM steel Eurofer97

English Title

Modeling of ductile tearing for RAFM steel Eurofer97

Type

WoS Article

Original Abstract

The contribution describes experiments and numerical modeling performed to deal with ductile tearing for RAFM steel Eurofer97. Based on results of tensile testing and results of FEA, a micromechanical model of ductile fracture Gurson Tvergaard Needleman (GTN) was calibrated. This model was then applied for simulation of measured J R curve. To successfully simulate J R curve by GTN model, crack length increment was separated into increment created by crack tip blunting (stretch width zone increment) and by ductile tearing itself. J R curve corrected to crack tip blunting was satisfactory described by GTN model choosing suitable element size in the region of crack propagation.

English abstract

The contribution describes experiments and numerical modeling performed to deal with ductile tearing for RAFM steel Eurofer97. Based on results of tensile testing and results of FEA, a micromechanical model of ductile fracture Gurson Tvergaard Needleman (GTN) was calibrated. This model was then applied for simulation of measured J R curve. To successfully simulate J R curve by GTN model, crack length increment was separated into increment created by crack tip blunting (stretch width zone increment) and by ductile tearing itself. J R curve corrected to crack tip blunting was satisfactory described by GTN model choosing suitable element size in the region of crack propagation.

Keywords

Eurofer97, ductile fracture, J R curve, KLST specimen, GTN model

Key words in English

Eurofer97, ductile fracture, J R curve, KLST specimen, GTN model

Authors

STRATIL, L.; ŠIŠKA, F.; HADRABA, H.; DLOUHÝ, I.

RIV year

2015

Released

27.06.2014

ISBN

2211-8128

Periodical

Procedia Materials Science

Volume

3

Number

6

State

Kingdom of the Netherlands

Pages from

1155

Pages to

1160

Pages count

6

BibTex

@article{BUT108507,
  author="Luděk {Stratil} and Filip {Šiška} and Hynek {Hadraba} and Ivo {Dlouhý}",
  title="Modeling of ductile tearing for RAFM steel Eurofer97",
  journal="Procedia Materials Science",
  year="2014",
  volume="3",
  number="6",
  pages="1155--1160",
  doi="10.1016/j.mspro.2014.06.188",
  issn="2211-8128"
}