Detail publikačního výsledku

3D Atomistic Simulation of Fatigue Behavior of a Ductile Crack in BCC Iron loaded in mode II

UHNÁKOVÁ, A.; POKLUDA, J.; MACHOVÁ, A.; HORA, P.

Originální název

3D Atomistic Simulation of Fatigue Behavior of a Ductile Crack in BCC Iron loaded in mode II

Anglický název

3D Atomistic Simulation of Fatigue Behavior of a Ductile Crack in BCC Iron loaded in mode II

Druh

Článek WoS

Originální abstrakt

We present new results of 3D molecular dynamic (MD) simulations of a mechanical response of an edge crack [110] (crack plane/crack front) in a single crystal of bcc iron cyclically loaded in mode II at room temperature and 0 K under different boundary conditions. Our previous 3D molecular dynamic simulations showed that this crack under monotonic uniaxial tension loading in mode I emitted blunting dislocations in the inclined slip systems and it was stable up to very high loads, in qualitative agreement with experiments and continuum predictions. Our question is how the cyclic loading in mode II changes the crack behaviour and its stability. The paper also brings information on comparison with fatigue behaviour of the crack loaded in mode I and in mode III.

Anglický abstrakt

We present new results of 3D molecular dynamic (MD) simulations of a mechanical response of an edge crack [110] (crack plane/crack front) in a single crystal of bcc iron cyclically loaded in mode II at room temperature and 0 K under different boundary conditions. Our previous 3D molecular dynamic simulations showed that this crack under monotonic uniaxial tension loading in mode I emitted blunting dislocations in the inclined slip systems and it was stable up to very high loads, in qualitative agreement with experiments and continuum predictions. Our question is how the cyclic loading in mode II changes the crack behaviour and its stability. The paper also brings information on comparison with fatigue behaviour of the crack loaded in mode I and in mode III.

Klíčová slova

atomistic simulation; fatigue behavior; ductile crack; BCC iron

Klíčová slova v angličtině

atomistic simulation; fatigue behavior; ductile crack; BCC iron

Autoři

UHNÁKOVÁ, A.; POKLUDA, J.; MACHOVÁ, A.; HORA, P.

Rok RIV

2013

Vydáno

23.03.2012

ISSN

0927-0256

Periodikum

COMPUTATIONAL MATERIALS SCIENCE

Svazek

61

Číslo

1

Stát

Nizozemsko

Strany od

12

Strany do

19

Strany počet

8

BibTex

@article{BUT89318,
  author="Alena {Uhnáková} and Jaroslav {Pokluda} and Anna {Machová} and Petr {Hora}",
  title="3D Atomistic Simulation of Fatigue Behavior of a Ductile Crack in BCC Iron loaded in mode II",
  journal="COMPUTATIONAL MATERIALS SCIENCE",
  year="2012",
  volume="61",
  number="1",
  pages="12--19",
  issn="0927-0256"
}