Detail publikačního výsledku

Crack growth in Fe–2.7 wt% Si single crystals under cyclic loading and 3D atomistic results in bcc iron

LANDA, M.; MACHOVÁ, A.; UHNÁKOVÁ, A.; POKLUDA, J.; LEJČEK, P.

Originální název

Crack growth in Fe–2.7 wt% Si single crystals under cyclic loading and 3D atomistic results in bcc iron

Anglický název

Crack growth in Fe–2.7 wt% Si single crystals under cyclic loading and 3D atomistic results in bcc iron

Druh

Článek WoS

Originální abstrakt

To search for correlations between experiments on macro-level and atomistic results on nano-scale, new experimental results from fracture tests under cyclic loading performed at room temperature on bcc iron-silicon single crystals with edge crack ð110Þ[110] (crack plane/crack front) are presented. The crystals were loaded in mode I with stress ratio R = 0. Crack growth Da under various values of the applied stress intensity DKA and acoustic emission response were monitored simultaneously. Experimental results comply with the basic predictions on fatigue crack growth following from continuum modeling and with molecular dynamic (MD) simulations in bcc iron. MD and experimental results can be described by very similar values of the Paris exponents although different length scales are treated in the two methods.

Anglický abstrakt

To search for correlations between experiments on macro-level and atomistic results on nano-scale, new experimental results from fracture tests under cyclic loading performed at room temperature on bcc iron-silicon single crystals with edge crack ð110Þ[110] (crack plane/crack front) are presented. The crystals were loaded in mode I with stress ratio R = 0. Crack growth Da under various values of the applied stress intensity DKA and acoustic emission response were monitored simultaneously. Experimental results comply with the basic predictions on fatigue crack growth following from continuum modeling and with molecular dynamic (MD) simulations in bcc iron. MD and experimental results can be described by very similar values of the Paris exponents although different length scales are treated in the two methods.

Klíčová slova

Fe–2.7 wt% Si single crystals; Crack growth; Cyclic loading; Bcc iron

Klíčová slova v angličtině

Fe–2.7 wt% Si single crystals; Crack growth; Cyclic loading; Bcc iron

Autoři

LANDA, M.; MACHOVÁ, A.; UHNÁKOVÁ, A.; POKLUDA, J.; LEJČEK, P.

Rok RIV

2017

Vydáno

01.07.2016

ISSN

0142-1123

Periodikum

International Journal of Fatigue

Svazek

87

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

63

Strany do

70

Strany počet

8

BibTex

@article{BUT126925,
  author="Michal {Landa} and Anna {Machová} and Alena {Uhnáková} and Jaroslav {Pokluda} and Pavel {Lejček}",
  title="Crack growth in Fe–2.7 wt% Si single crystals under cyclic loading and 3D atomistic results in bcc iron",
  journal="International Journal of Fatigue",
  year="2016",
  volume="87",
  number="1",
  pages="63--70",
  doi="10.1016/j.ijfatigue.2015.12.012",
  issn="0142-1123"
}