Acoustic emission sources from fast dislocation motion

0519647 - ÚT 2020 RIV CZ eng C - Conference Paper (international conference)
Hora, Petr - Machová, Anna - Červ, Jan - Uhnáková, Alena
Acoustic emission sources from fast dislocation motion.
NDT in Progress 2019. Praha: Ústav termomechaniky AV ČR, v. v. i., 2019 - (Převorovský, Z.), s. 25-34. ISBN 978-80-87012-72-7.
[NDT in Progress 2019 /10./. Praha (CZ), 07.10.2019-10.10.2019]
R&D Projects: GA ČR(CZ) GA17-12925S; GA ČR(CZ) GA17-22615S; GA MŠMT(CZ) EF15_003/0000493
Institutional support: RVO:61388998
Keywords : acoustic emission * edge crack * dislocation emission * free surface * bcc iron
OECD category: Materials engineering
http://www.ndt.net/?id=24795

Acoustic emission from the fast dislocations emitted from an edge crack in 3D bcc iron crystal is studied via atomistic simulations by molecular dynamics technique. Acoustic emission patterns arising from the fast dislocation motion in molecular dynamics are visualized via the local kinetic energies of individual atoms and further modeled as a moving source of the stress waves in the anisotropic continuum.
Permanent Link: http://hdl.handle.net/11104/0304920