Original title:
Acoustic emission sources from fast dislocation motion
Authors:
Hora, Petr ; Machová, Anna ; Červ, Jan ; Uhnáková, Alena Document type: Papers Conference/Event: NDT in Progress 2019 /10./, Praha (CZ), 20191007
Year:
2019
Language:
eng Abstract:
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.
Keywords:
acoustic emission; bcc iron; dislocation emission; edge crack; free surface Project no.: GA17-12925S (CEP), GA17-22615S (CEP), EF15_003/0000493 Funding provider: GA ČR, GA ČR, GA MŠk Host item entry: NDT in Progress 2019, ISBN 978-80-87012-72-7 Note: Související webová stránka: http://www.ndt.net/?id=24795
Institution: Institute of Thermomechanics AS ČR
(web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences. Original record: http://hdl.handle.net/11104/0304920