Detail publikačního výsledku

Comparative investigation of ductile fracture with 316L austenitic stainless steel in small punch tests: Experiments and simulations

KUBÍK, P.; ŠEBEK, F.; PETRUŠKA, J.; HŮLKA, J.; PARK, N.; HUH, H.

Original Title

Comparative investigation of ductile fracture with 316L austenitic stainless steel in small punch tests: Experiments and simulations

English Title

Comparative investigation of ductile fracture with 316L austenitic stainless steel in small punch tests: Experiments and simulations

Type

WoS Article

Original Abstract

This paper deals with a small punch test and ductile failure prediction of austenitic stainless steel 316L. Comprehensive investigation of fracture surfaces was conducted as well as examination of δ-ferrite and σ-phase present in the material in order to reveal the reason of occurrence of nonstandard type of fracture. Three phenomenological ductile fracture criteria were selected for comparative simulations regarding the prediction of crack initiation and propagation during the SPT. These criteria were calibrated by using the fracture tests of smooth cylindrical specimens, notched cylindrical specimens, notched tube specimens and cylinders with spherical recess. The whole material model including the fracture criteria with von Mises plasticity and element deletion technique for simulation of the crack initiation was implemented by using the user subroutine Vectorised User MATerial into the commercial finite element code of Abaqus. Finally, the simulation results with three ductile fracture criteria are compared and discussed based on the experimental results. Only one of the failure criteria captured the displacement at fracture correctly.

English abstract

This paper deals with a small punch test and ductile failure prediction of austenitic stainless steel 316L. Comprehensive investigation of fracture surfaces was conducted as well as examination of δ-ferrite and σ-phase present in the material in order to reveal the reason of occurrence of nonstandard type of fracture. Three phenomenological ductile fracture criteria were selected for comparative simulations regarding the prediction of crack initiation and propagation during the SPT. These criteria were calibrated by using the fracture tests of smooth cylindrical specimens, notched cylindrical specimens, notched tube specimens and cylinders with spherical recess. The whole material model including the fracture criteria with von Mises plasticity and element deletion technique for simulation of the crack initiation was implemented by using the user subroutine Vectorised User MATerial into the commercial finite element code of Abaqus. Finally, the simulation results with three ductile fracture criteria are compared and discussed based on the experimental results. Only one of the failure criteria captured the displacement at fracture correctly.

Keywords

Ductile fracture criteria; Small punch test; Electron microscopy; Piping; Failure modes; Miniature testing

Key words in English

Ductile fracture criteria; Small punch test; Electron microscopy; Piping; Failure modes; Miniature testing

Authors

KUBÍK, P.; ŠEBEK, F.; PETRUŠKA, J.; HŮLKA, J.; PARK, N.; HUH, H.

RIV year

2019

Released

11.10.2018

ISBN

0167-8442

Periodical

THEORETICAL AND APPLIED FRACTURE MECHANICS

Volume

98

Number

1

State

Kingdom of the Netherlands

Pages from

186

Pages to

198

Pages count

13

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT150564,
  author="Petr {Kubík} and František {Šebek} and Jindřich {Petruška} and Jiří {Hůlka} and Namsu {Park} and Hoon {Huh}",
  title="Comparative investigation of ductile fracture with 316L austenitic stainless steel in small punch tests: Experiments and simulations",
  journal="THEORETICAL AND APPLIED FRACTURE MECHANICS",
  year="2018",
  volume="98",
  number="1",
  pages="186--198",
  doi="10.1016/j.tafmec.2018.10.005",
  issn="0167-8442"
}

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