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.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2019

Vydáno

11.10.2018

ISSN

0167-8442

Periodikum

THEORETICAL AND APPLIED FRACTURE MECHANICS

Svazek

98

Číslo

1

Stát

Nizozemsko

Strany od

186

Strany do

198

Strany počet

13

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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