Detail publikace

3D Atomistic Simulation of Fatigue Behaviour of Cracked Single Crystal of bcc Iron Loaded in Mode III

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

Originální název

3D Atomistic Simulation of Fatigue Behaviour of Cracked Single Crystal of bcc Iron Loaded in Mode III

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

We present new results of 3D molecular dynamic (MD) simulations of a mechanical behaviour of an edge crack <110>[110] (crack plane/crack front) in a single crystal of bcc iron cyclically loaded in mode III at room temperature. Our previous 3D molecular dynamic simulations showed that this crack under monotonic uniaxial tension loading in mode I emitted blunting dislocations in the inclined <111>(112) 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 III changes the crack behaviour and its stability. The paper also brings information on how the distribution of external forces in mode III influences the fatigue crack behaviour and how the defects generated by the crack can produce experimentally observed advances of the crack front in local modes I, II, I + II and II + III.

Klíčová slova

Fatigue; Mode III; bcc iron; Molecular dynamics simulations

Autoři

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

Rok RIV

2011

Vydáno

1. 11. 2011

ISSN

0142-1123

Periodikum

INTERNATIONAL JOURNAL OF FATIGUE

Ročník

33

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1564

Strany do

1573

Strany počet

10

BibTex

@article{BUT76124,
  author="Alena {Uhnáková} and Jaroslav {Pokluda} and Anna {Machová} and Petr {Hora}",
  title="3D Atomistic Simulation of Fatigue Behaviour of Cracked Single Crystal of bcc Iron Loaded in Mode III",
  journal="INTERNATIONAL JOURNAL OF FATIGUE",
  year="2011",
  volume="33",
  number="1",
  pages="1564--1573",
  issn="0142-1123"
}