Stress wave radiation from brittle crack extension by MD and FEM

0382380 - ÚT 2013 RIV CZ eng A - Abstrakt
Hora, Petr - Červená, Olga - Uhnáková, Alena - Machová, Anna
Stress wave radiation from brittle crack extension by MD and FEM.
Advanced Modelling of Wave Propagation in Solids. Prague: Institute of Thermomechanics ASCR, v. v. i., 2012 - (Kolman, R.; Berezovski, A.; Okrouhlík, M.; Plešek, J.). s. 63-64. ISBN 978-80-87012-41-3.
[EUROMECH Colloquium 540. 01.10.2012-03.10.2012, Praha]
Grant CEP: GA ČR GA101/09/1630
Institucionální podpora: RVO:61388998
Klíčová slova: molecular dynamic * finite element simulation * bcc iron crystal
Kód oboru RIV: BI - Akustika a kmity

The contribution presents results for molecular dynamic (MD) and finite element (FEM) simulations in 3D bcc iron crystals, with embedded central through crack (001)[110] of Griffith type, loaded in mode I. The sample geometry and border conditions in MD were chosen in such a way as to invoke a cleavage crack extension. Acoustic emission sources caused by the crack were analysed on both the atomistic and continuum level with FEM.
Trvalý link: http://hdl.handle.net/11104/0212612